Create, read, and edit Excel files in ASP.NET Core
22 Jul 202624 minutes to read
.NET Excel Library for ASP.NET Core platform can be used to create, read, edit Excel files. These can also convert Excel files to PDF.
To quickly get started on creating an Excel document in ASP.NET Core, please check out this video:
Create a simple Excel report
The following steps illustrate creating a simple invoice-formatted Excel document in ASP.NET Core.
Prerequisites:
- Visual Studio 2022 (17.0 or later) with the ASP.NET and web development workload installed.
- .NET 8.0 SDK or later.
- A user account with write permissions to the project folder.
Step 1: Create a new C# ASP.NET Core Web Application project.
Step 2: Select the framework for the project
Step 3: Install the Syncfusion.XlsIO.Net.Core NuGet package with the latest stable version as a reference to your ASP.NET Core application from NuGet.org.
NOTE
Starting with v16.2.0.x, if you reference Syncfusion® assemblies from trial setup or from the NuGet feed, you also have to add “Syncfusion.Licensing” assembly reference and include a license key in your projects. Please refer to this link to know about registering Syncfusion® license key in your applications to use our components.
Step 4: A default controller named HomeController.cs is added on creation of an ASP.NET Core project. Include the following namespaces at the top of the HomeController.cs file.
using Syncfusion.XlsIO;
using System.IO;
using Syncfusion.Drawing;Imports Syncfusion.XlsIO
Imports System.IO
Imports Syncfusion.DrawingStep 5: A default action method named Index will be present in HomeController.cs. Right-click the Index method and select Go To View where you will be directed to its associated view page, Index.cshtml.
Step 6: Add a new button in the Index.cshtml view as shown below.
@{Html.BeginForm("CreateDocument", "Home", FormMethod.Get);
{
<div>
<input type="submit" value="Create Document" style="width:150px;height:27px" />
</div>
}
Html.EndForm();
}Step 7: Add a new action method CreateDocument in HomeController.cs and include the following code snippet to create an Excel file and download it. Also place the AdventureCycles-Logo.png image file in the project root or wwwroot folder so the code can load it via a relative path.
//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
//Create a workbook
IWorkbook workbook = application.Workbooks.Create(1);
IWorksheet worksheet = workbook.Worksheets[0];
//Adding a picture
FileStream imageStream = new FileStream("AdventureCycles-Logo.png", FileMode.Open, FileAccess.Read);
IPictureShape shape = worksheet.Pictures.AddPicture(1, 1, imageStream, 20, 20);
//Disable gridlines in the worksheet
worksheet.IsGridLinesVisible = false;
//Enter values to the cells from A3 to A5
worksheet.Range["A3"].Text = "46036 Michigan Ave";
worksheet.Range["A4"].Text = "Canton, USA";
worksheet.Range["A5"].Text = "Phone: +1 231-231-2310";
//Make the text bold
worksheet.Range["A3:A5"].CellStyle.Font.Bold = true;
//Merge cells
worksheet.Range["D1:E1"].Merge();
//Enter text to the cell D1 and apply formatting.
worksheet.Range["D1"].Text = "INVOICE";
worksheet.Range["D1"].CellStyle.Font.Bold = true;
worksheet.Range["D1"].CellStyle.Font.RGBColor = Color.FromArgb(42, 118, 189);
worksheet.Range["D1"].CellStyle.Font.Size = 35;
//Apply alignment in the cell D1
worksheet.Range["D1"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignRight;
worksheet.Range["D1"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignTop;
//Enter values to the cells from D5 to E8
worksheet.Range["D5"].Text = "INVOICE#";
worksheet.Range["E5"].Text = "DATE";
worksheet.Range["D6"].Number = 1028;
worksheet.Range["E6"].Value = "12/31/2018";
worksheet.Range["D7"].Text = "CUSTOMER ID";
worksheet.Range["E7"].Text = "TERMS";
worksheet.Range["D8"].Number = 564;
worksheet.Range["E8"].Text = "Due Upon Receipt";
//Apply an RGB background color to the cells from D5 to E8
worksheet.Range["D5:E5"].CellStyle.Color = Color.FromArgb(42, 118, 189);
worksheet.Range["D7:E7"].CellStyle.Color = Color.FromArgb(42, 118, 189);
//Apply known colors to the text in cells D5 to E8
worksheet.Range["D5:E5"].CellStyle.Font.Color = ExcelKnownColors.White;
worksheet.Range["D7:E7"].CellStyle.Font.Color = ExcelKnownColors.White;
//Make the text as bold from D5 to E8
worksheet.Range["D5:E8"].CellStyle.Font.Bold = true;
//Apply alignment to the cells from D5 to E8
worksheet.Range["D5:E8"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter;
worksheet.Range["D5:E5"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter;
worksheet.Range["D7:E7"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter;
worksheet.Range["D6:E6"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignTop;
//Enter value and applying formatting in the cell A7
worksheet.Range["A7"].Text = " BILL TO";
worksheet.Range["A7"].CellStyle.Color = Color.FromArgb(42, 118, 189);
worksheet.Range["A7"].CellStyle.Font.Bold = true;
worksheet.Range["A7"].CellStyle.Font.Color = ExcelKnownColors.White;
//Apply alignment
worksheet.Range["A7"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignLeft;
worksheet.Range["A7"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter;
//Enter values in the cells A8 to A12
worksheet.Range["A8"].Text = "Steyn";
worksheet.Range["A9"].Text = "Great Lakes Food Market";
worksheet.Range["A10"].Text = "20 Whitehall Rd";
worksheet.Range["A11"].Text = "North Muskegon,USA";
worksheet.Range["A12"].Text = "+1 231-654-0000";
//Create a Hyperlink for e-mail in the cell A13
IHyperLink hyperlink = worksheet.HyperLinks.Add(worksheet.Range["A13"]);
hyperlink.Type = ExcelHyperLinkType.Url;
hyperlink.Address = "[email protected]";
hyperlink.ScreenTip = "Send Mail";
//Merge column A and B from row 15 to 22
worksheet.Range["A15:B15"].Merge();
worksheet.Range["A16:B16"].Merge();
worksheet.Range["A17:B17"].Merge();
worksheet.Range["A18:B18"].Merge();
worksheet.Range["A19:B19"].Merge();
worksheet.Range["A20:B20"].Merge();
worksheet.Range["A21:B21"].Merge();
worksheet.Range["A22:B22"].Merge();
//Enter details of products and prices
worksheet.Range["A15"].Text = " DESCRIPTION";
worksheet.Range["C15"].Text = "QTY";
worksheet.Range["D15"].Text = "UNIT PRICE";
worksheet.Range["E15"].Text = "AMOUNT";
worksheet.Range["A16"].Text = "Cabrales Cheese";
worksheet.Range["A17"].Text = "Chocos";
worksheet.Range["A18"].Text = "Pasta";
worksheet.Range["A19"].Text = "Cereals";
worksheet.Range["A20"].Text = "Ice Cream";
worksheet.Range["C16"].Number = 3;
worksheet.Range["C17"].Number = 2;
worksheet.Range["C18"].Number = 1;
worksheet.Range["C19"].Number = 4;
worksheet.Range["C20"].Number = 3;
worksheet.Range["D16"].Number = 21;
worksheet.Range["D17"].Number = 54;
worksheet.Range["D18"].Number = 10;
worksheet.Range["D19"].Number = 20;
worksheet.Range["D20"].Number = 30;
worksheet.Range["D23"].Text = "Total";
//Apply number format
worksheet.Range["D16:E22"].NumberFormat = "$0.00";
worksheet.Range["E23"].NumberFormat = "$0.00";
// Enable automatic increment of cell references when assigning a formula to a range.
application.EnableIncrementalFormula = true;
worksheet.Range["E16:E20"].Formula = "=C16*D16";
//Formula for Sum the total
worksheet.Range["E23"].Formula = "=SUM(E16:E22)";
//Apply borders
worksheet.Range["A16:E22"].CellStyle.Borders[ExcelBordersIndex.EdgeTop].LineStyle = ExcelLineStyle.Thin;
worksheet.Range["A16:E22"].CellStyle.Borders[ExcelBordersIndex.EdgeBottom].LineStyle = ExcelLineStyle.Thin;
worksheet.Range["A16:E22"].CellStyle.Borders[ExcelBordersIndex.EdgeTop].Color = ExcelKnownColors.Grey_25_percent;
worksheet.Range["A16:E22"].CellStyle.Borders[ExcelBordersIndex.EdgeBottom].Color = ExcelKnownColors.Grey_25_percent;
worksheet.Range["A23:E23"].CellStyle.Borders[ExcelBordersIndex.EdgeTop].LineStyle = ExcelLineStyle.Thin;
worksheet.Range["A23:E23"].CellStyle.Borders[ExcelBordersIndex.EdgeBottom].LineStyle = ExcelLineStyle.Thin;
worksheet.Range["A23:E23"].CellStyle.Borders[ExcelBordersIndex.EdgeTop].Color = ExcelKnownColors.Black;
worksheet.Range["A23:E23"].CellStyle.Borders[ExcelBordersIndex.EdgeBottom].Color = ExcelKnownColors.Black;
//Apply font setting for cells with product details
worksheet.Range["A3:E23"].CellStyle.Font.FontName = "Arial";
worksheet.Range["A3:E23"].CellStyle.Font.Size = 10;
worksheet.Range["A15:E15"].CellStyle.Font.Color = ExcelKnownColors.White;
worksheet.Range["A15:E15"].CellStyle.Font.Bold = true;
worksheet.Range["D23:E23"].CellStyle.Font.Bold = true;
//Apply cell color
worksheet.Range["A15:E15"].CellStyle.Color = Color.FromArgb(42, 118, 189);
//Apply alignment to cells with product details
worksheet.Range["A15"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignLeft;
worksheet.Range["C15:C22"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter;
worksheet.Range["D15:E15"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter;
//Apply row height and column width to look good
worksheet.Range["A1"].ColumnWidth = 36;
worksheet.Range["B1"].ColumnWidth = 11;
worksheet.Range["C1"].ColumnWidth = 8;
worksheet.Range["D1:E1"].ColumnWidth = 18;
worksheet.Range["A1"].RowHeight = 47;
worksheet.Range["A2"].RowHeight = 15;
worksheet.Range["A3:A4"].RowHeight = 15;
worksheet.Range["A5"].RowHeight = 18;
worksheet.Range["A6"].RowHeight = 29;
worksheet.Range["A7"].RowHeight = 18;
worksheet.Range["A8"].RowHeight = 15;
worksheet.Range["A9:A14"].RowHeight = 15;
worksheet.Range["A15:A23"].RowHeight = 18;
//Saving the Excel file to a MemoryStream
MemoryStream stream = new MemoryStream();
workbook.SaveAs(stream);
//Set the position to 0
stream.Position = 0;
imageStream.Dispose();
//Return the Excel file for download
return new FileStreamResult(stream, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
{
FileDownloadName = "CreateExcel.xlsx"
};
}'Create an instance of ExcelEngine
Using excelEngine As ExcelEngine = New ExcelEngine()
Dim application As IApplication = excelEngine.Excel
application.DefaultVersion = ExcelVersion.Xlsx
'Create a workbook
Dim workbook As IWorkbook = application.Workbooks.Create(1)
Dim worksheet As IWorksheet = workbook.Worksheets(0)
'Adding a picture
Dim imageStream As FileStream = New FileStream("AdventureCycles-Logo.png", FileMode.Open, FileAccess.Read)
Dim shape As IPictureShape = worksheet.Pictures.AddPicture(1, 1, imageStream, 20, 20)
'Disable gridlines in the worksheet
worksheet.IsGridLinesVisible = False
'Enter values to the cells from A3 to A5
worksheet.Range("A3").Text = "46036 Michigan Ave"
worksheet.Range("A4").Text = "Canton, USA"
worksheet.Range("A5").Text = "Phone: +1 231-231-2310"
'Make the text bold
worksheet.Range("A3:A5").CellStyle.Font.Bold = True
'Merge cells
worksheet.Range("D1:E1").Merge()
'Enter text to the cell D1 and apply formatting.
worksheet.Range("D1").Text = "INVOICE"
worksheet.Range("D1").CellStyle.Font.Bold = True
worksheet.Range("D1").CellStyle.Font.RGBColor = Color.FromArgb(42, 118, 189)
worksheet.Range("D1").CellStyle.Font.Size = 35
'Apply alignment in the cell D1
worksheet.Range("D1").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignRight
worksheet.Range("D1").CellStyle.VerticalAlignment = ExcelVAlign.VAlignTop
'Enter values to the cells from D5 to E8
worksheet.Range("D5").Text = "INVOICE#"
worksheet.Range("E5").Text = "DATE"
worksheet.Range("D6").Number = 1028
worksheet.Range("E6").Value = "12/31/2018"
worksheet.Range("D7").Text = "CUSTOMER ID"
worksheet.Range("E7").Text = "TERMS"
worksheet.Range("D8").Number = 564
worksheet.Range("E8").Text = "Due Upon Receipt"
'Apply an RGB background color to the cells from D5 to E8
worksheet.Range("D5:E5").CellStyle.Color = Color.FromArgb(42, 118, 189)
worksheet.Range("D7:E7").CellStyle.Color = Color.FromArgb(42, 118, 189)
'Apply known colors to the text in cells D5 to E8
worksheet.Range("D5:E5").CellStyle.Font.Color = ExcelKnownColors.White
worksheet.Range("D7:E7").CellStyle.Font.Color = ExcelKnownColors.White
'Make the text as bold from D5 to E8
worksheet.Range("D5:E8").CellStyle.Font.Bold = True
'Apply alignment to the cells from D5 to E8
worksheet.Range("D5:E8").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter
worksheet.Range("D5:E5").CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter
worksheet.Range("D7:E7").CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter
worksheet.Range("D6:E6").CellStyle.VerticalAlignment = ExcelVAlign.VAlignTop
'Enter value and applying formatting in the cell A7
worksheet.Range("A7").Text = " BILL TO"
worksheet.Range("A7").CellStyle.Color = Color.FromArgb(42, 118, 189)
worksheet.Range("A7").CellStyle.Font.Bold = True
worksheet.Range("A7").CellStyle.Font.Color = ExcelKnownColors.White
'Apply alignment
worksheet.Range("A7").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignLeft
worksheet.Range("A7").CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter
'Enter values in the cells A8 to A12
worksheet.Range("A8").Text = "Steyn"
worksheet.Range("A9").Text = "Great Lakes Food Market"
worksheet.Range("A10").Text = "20 Whitehall Rd"
worksheet.Range("A11").Text = "North Muskegon,USA"
worksheet.Range("A12").Text = "+1 231-654-0000"
'Create a Hyperlink for e-mail in the cell A13
Dim hyperlink As IHyperLink = worksheet.HyperLinks.Add(worksheet.Range("A13"))
hyperlink.Type = ExcelHyperLinkType.Url
hyperlink.Address = "[email protected]"
hyperlink.ScreenTip = "Send Mail"
'Merge column A and B from row 15 to 22
worksheet.Range("A15:B15").Merge()
worksheet.Range("A16:B16").Merge()
worksheet.Range("A17:B17").Merge()
worksheet.Range("A18:B18").Merge()
worksheet.Range("A19:B19").Merge()
worksheet.Range("A20:B20").Merge()
worksheet.Range("A21:B21").Merge()
worksheet.Range("A22:B22").Merge()
'Enter details of products and prices
worksheet.Range("A15").Text = " DESCRIPTION"
worksheet.Range("C15").Text = "QTY"
worksheet.Range("D15").Text = "UNIT PRICE"
worksheet.Range("E15").Text = "AMOUNT"
worksheet.Range("A16").Text = "Cabrales Cheese"
worksheet.Range("A17").Text = "Chocos"
worksheet.Range("A18").Text = "Pasta"
worksheet.Range("A19").Text = "Cereals"
worksheet.Range("A20").Text = "Ice Cream"
worksheet.Range("C16").Number = 3
worksheet.Range("C17").Number = 2
worksheet.Range("C18").Number = 1
worksheet.Range("C19").Number = 4
worksheet.Range("C20").Number = 3
worksheet.Range("D16").Number = 21
worksheet.Range("D17").Number = 54
worksheet.Range("D18").Number = 10
worksheet.Range("D19").Number = 20
worksheet.Range("D20").Number = 30
worksheet.Range("D23").Text = "Total"
'Apply number format
worksheet.Range("D16:E22").NumberFormat = "$0.00"
worksheet.Range("E23").NumberFormat = "$0.00"
'Enable automatic increment of cell references when assigning a formula to a range
application.EnableIncrementalFormula = True
worksheet.Range("E16:E20").Formula = "=C16*D16"
'Formula for Sum the total
worksheet.Range("E23").Formula = "=SUM(E16:E22)"
'Apply borders
worksheet.Range("A16:E22").CellStyle.Borders(ExcelBordersIndex.EdgeTop).LineStyle = ExcelLineStyle.Thin
worksheet.Range("A16:E22").CellStyle.Borders(ExcelBordersIndex.EdgeBottom).LineStyle = ExcelLineStyle.Thin
worksheet.Range("A16:E22").CellStyle.Borders(ExcelBordersIndex.EdgeTop).Color = ExcelKnownColors.Grey_25_percent
worksheet.Range("A16:E22").CellStyle.Borders(ExcelBordersIndex.EdgeBottom).Color = ExcelKnownColors.Grey_25_percent
worksheet.Range("A23:E23").CellStyle.Borders(ExcelBordersIndex.EdgeTop).LineStyle = ExcelLineStyle.Thin
worksheet.Range("A23:E23").CellStyle.Borders(ExcelBordersIndex.EdgeBottom).LineStyle = ExcelLineStyle.Thin
worksheet.Range("A23:E23").CellStyle.Borders(ExcelBordersIndex.EdgeTop).Color = ExcelKnownColors.Black
worksheet.Range("A23:E23").CellStyle.Borders(ExcelBordersIndex.EdgeBottom).Color = ExcelKnownColors.Black
'Apply font setting for cells with product details
worksheet.Range("A3:E23").CellStyle.Font.FontName = "Arial"
worksheet.Range("A3:E23").CellStyle.Font.Size = 10
worksheet.Range("A15:E15").CellStyle.Font.Color = ExcelKnownColors.White
worksheet.Range("A15:E15").CellStyle.Font.Bold = True
worksheet.Range("D23:E23").CellStyle.Font.Bold = True
'Apply cell color
worksheet.Range("A15:E15").CellStyle.Color = Color.FromArgb(42, 118, 189)
'Apply alignment to cells with product details
worksheet.Range("A15").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignLeft
worksheet.Range("C15:C22").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter
worksheet.Range("D15:E15").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter
'Apply row height and column width to look good
worksheet.Range("A1").ColumnWidth = 36
worksheet.Range("B1").ColumnWidth = 11
worksheet.Range("C1").ColumnWidth = 8
worksheet.Range("D1:E1").ColumnWidth = 18
worksheet.Range("A1").RowHeight = 47
worksheet.Range("A2").RowHeight = 15
worksheet.Range("A3:A4").RowHeight = 15
worksheet.Range("A5").RowHeight = 18
worksheet.Range("A6").RowHeight = 29
worksheet.Range("A7").RowHeight = 18
worksheet.Range("A8").RowHeight = 15
worksheet.Range("A9:A14").RowHeight = 15
worksheet.Range("A15:A23").RowHeight = 18
'Saving the Excel to the MemoryStream
Dim stream As MemoryStream = New MemoryStream()
workbook.SaveAs(stream)
'Set the position as '0'.
stream.Position = 0
'Download the Excel file in the browser
Dim fileStreamResult As FileStreamResult = New FileStreamResult(stream, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
fileStreamResult.FileDownloadName = "Output.xlsx"
Return fileStreamResult
End UsingStep 1: Create a new C# ASP.NET Core Web Application project using the Create .NET Project option.
Step 2: Enter the project name and create the project.
Alternatively, create an ASP.NET Core Web application using the following command in the terminal (Ctrl+`):
dotnet new webapp -o CreateExcel
cd CreateExcel
Step 3: To create an Excel document in the ASP.NET Core Web app, run the following command to install the Syncfusion.XlsIO.Net.Core package.
dotnet add package Syncfusion.XlsIO.Net.Core
NOTE
Starting with v16.2.0.x, if you reference Syncfusion® assemblies from trial setup or from the NuGet feed, you also have to add “Syncfusion.Licensing” assembly reference and include a license key in your projects. Please refer to this link to know about registering Syncfusion® license key in your applications to use our components.
Step 4: A default controller named HomeController.cs is added on creation of an ASP.NET Core project. Include the following namespaces in the HomeController.cs file.
using Syncfusion.XlsIO;
using System.IO;
using Syncfusion.Drawing;Imports Syncfusion.XlsIO
Imports System.IO
Imports Syncfusion.DrawingStep 5: A default action method named Index will be present in HomeController.cs. Right-click the Index method and select Go To View where you will be directed to its associated view page, Index.cshtml.
Step 6: Add a new button in the Index.cshtml as shown below.
@{Html.BeginForm("CreateDocument", "Home", FormMethod.Get);
{
<div>
<input type="submit" value="Create Document" style="width:150px;height:27px" />
</div>
}
Html.EndForm();
}Step 7: Add a new action method CreateDocument in HomeController.cs and include the following code snippet to create an Excel file and download it.
//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
//Create a workbook
IWorkbook workbook = application.Workbooks.Create(1);
IWorksheet worksheet = workbook.Worksheets[0];
//Adding a picture
FileStream imageStream = new FileStream("AdventureCycles-Logo.png", FileMode.Open, FileAccess.Read);
IPictureShape shape = worksheet.Pictures.AddPicture(1, 1, imageStream, 20, 20);
//Disable gridlines in the worksheet
worksheet.IsGridLinesVisible = false;
//Enter values to the cells from A3 to A5
worksheet.Range["A3"].Text = "46036 Michigan Ave";
worksheet.Range["A4"].Text = "Canton, USA";
worksheet.Range["A5"].Text = "Phone: +1 231-231-2310";
//Make the text bold
worksheet.Range["A3:A5"].CellStyle.Font.Bold = true;
//Merge cells
worksheet.Range["D1:E1"].Merge();
//Enter text to the cell D1 and apply formatting.
worksheet.Range["D1"].Text = "INVOICE";
worksheet.Range["D1"].CellStyle.Font.Bold = true;
worksheet.Range["D1"].CellStyle.Font.RGBColor = Color.FromArgb(42, 118, 189);
worksheet.Range["D1"].CellStyle.Font.Size = 35;
//Apply alignment in the cell D1
worksheet.Range["D1"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignRight;
worksheet.Range["D1"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignTop;
//Enter values to the cells from D5 to E8
worksheet.Range["D5"].Text = "INVOICE#";
worksheet.Range["E5"].Text = "DATE";
worksheet.Range["D6"].Number = 1028;
worksheet.Range["E6"].Value = "12/31/2018";
worksheet.Range["D7"].Text = "CUSTOMER ID";
worksheet.Range["E7"].Text = "TERMS";
worksheet.Range["D8"].Number = 564;
worksheet.Range["E8"].Text = "Due Upon Receipt";
//Apply RGB backcolor to the cells from D5 to E8
worksheet.Range["D5:E5"].CellStyle.Color = Color.FromArgb(42, 118, 189);
worksheet.Range["D7:E7"].CellStyle.Color = Color.FromArgb(42, 118, 189);
//Apply known colors to the text in cells D5 to E8
worksheet.Range["D5:E5"].CellStyle.Font.Color = ExcelKnownColors.White;
worksheet.Range["D7:E7"].CellStyle.Font.Color = ExcelKnownColors.White;
//Make the text as bold from D5 to E8
worksheet.Range["D5:E8"].CellStyle.Font.Bold = true;
//Apply alignment to the cells from D5 to E8
worksheet.Range["D5:E8"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter;
worksheet.Range["D5:E5"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter;
worksheet.Range["D7:E7"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter;
worksheet.Range["D6:E6"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignTop;
//Enter value and applying formatting in the cell A7
worksheet.Range["A7"].Text = " BILL TO";
worksheet.Range["A7"].CellStyle.Color = Color.FromArgb(42, 118, 189);
worksheet.Range["A7"].CellStyle.Font.Bold = true;
worksheet.Range["A7"].CellStyle.Font.Color = ExcelKnownColors.White;
//Apply alignment
worksheet.Range["A7"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignLeft;
worksheet.Range["A7"].CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter;
//Enter values in the cells A8 to A12
worksheet.Range["A8"].Text = "Steyn";
worksheet.Range["A9"].Text = "Great Lakes Food Market";
worksheet.Range["A10"].Text = "20 Whitehall Rd";
worksheet.Range["A11"].Text = "North Muskegon,USA";
worksheet.Range["A12"].Text = "+1 231-654-0000";
//Create a Hyperlink for e-mail in the cell A13
IHyperLink hyperlink = worksheet.HyperLinks.Add(worksheet.Range["A13"]);
hyperlink.Type = ExcelHyperLinkType.Url;
hyperlink.Address = "[email protected]";
hyperlink.ScreenTip = "Send Mail";
//Merge column A and B from row 15 to 22
worksheet.Range["A15:B15"].Merge();
worksheet.Range["A16:B16"].Merge();
worksheet.Range["A17:B17"].Merge();
worksheet.Range["A18:B18"].Merge();
worksheet.Range["A19:B19"].Merge();
worksheet.Range["A20:B20"].Merge();
worksheet.Range["A21:B21"].Merge();
worksheet.Range["A22:B22"].Merge();
//Enter details of products and prices
worksheet.Range["A15"].Text = " DESCRIPTION";
worksheet.Range["C15"].Text = "QTY";
worksheet.Range["D15"].Text = "UNIT PRICE";
worksheet.Range["E15"].Text = "AMOUNT";
worksheet.Range["A16"].Text = "Cabrales Cheese";
worksheet.Range["A17"].Text = "Chocos";
worksheet.Range["A18"].Text = "Pasta";
worksheet.Range["A19"].Text = "Cereals";
worksheet.Range["A20"].Text = "Ice Cream";
worksheet.Range["C16"].Number = 3;
worksheet.Range["C17"].Number = 2;
worksheet.Range["C18"].Number = 1;
worksheet.Range["C19"].Number = 4;
worksheet.Range["C20"].Number = 3;
worksheet.Range["D16"].Number = 21;
worksheet.Range["D17"].Number = 54;
worksheet.Range["D18"].Number = 10;
worksheet.Range["D19"].Number = 20;
worksheet.Range["D20"].Number = 30;
worksheet.Range["D23"].Text = "Total";
//Apply number format
worksheet.Range["D16:E22"].NumberFormat = "$0.00";
worksheet.Range["E23"].NumberFormat = "$0.00";
//Apply incremental formula for column Amount by multiplying Qty and UnitPrice
application.EnableIncrementalFormula = true;
worksheet.Range["E16:E20"].Formula = "=C16*D16";
//Formula for Sum the total
worksheet.Range["E23"].Formula = "=SUM(E16:E22)";
//Apply borders
worksheet.Range["A16:E22"].CellStyle.Borders[ExcelBordersIndex.EdgeTop].LineStyle = ExcelLineStyle.Thin;
worksheet.Range["A16:E22"].CellStyle.Borders[ExcelBordersIndex.EdgeBottom].LineStyle = ExcelLineStyle.Thin;
worksheet.Range["A16:E22"].CellStyle.Borders[ExcelBordersIndex.EdgeTop].Color = ExcelKnownColors.Grey_25_percent;
worksheet.Range["A16:E22"].CellStyle.Borders[ExcelBordersIndex.EdgeBottom].Color = ExcelKnownColors.Grey_25_percent;
worksheet.Range["A23:E23"].CellStyle.Borders[ExcelBordersIndex.EdgeTop].LineStyle = ExcelLineStyle.Thin;
worksheet.Range["A23:E23"].CellStyle.Borders[ExcelBordersIndex.EdgeBottom].LineStyle = ExcelLineStyle.Thin;
worksheet.Range["A23:E23"].CellStyle.Borders[ExcelBordersIndex.EdgeTop].Color = ExcelKnownColors.Black;
worksheet.Range["A23:E23"].CellStyle.Borders[ExcelBordersIndex.EdgeBottom].Color = ExcelKnownColors.Black;
//Apply font setting for cells with product details
worksheet.Range["A3:E23"].CellStyle.Font.FontName = "Arial";
worksheet.Range["A3:E23"].CellStyle.Font.Size = 10;
worksheet.Range["A15:E15"].CellStyle.Font.Color = ExcelKnownColors.White;
worksheet.Range["A15:E15"].CellStyle.Font.Bold = true;
worksheet.Range["D23:E23"].CellStyle.Font.Bold = true;
//Apply cell color
worksheet.Range["A15:E15"].CellStyle.Color = Color.FromArgb(42, 118, 189);
//Apply alignment to cells with product details
worksheet.Range["A15"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignLeft;
worksheet.Range["C15:C22"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter;
worksheet.Range["D15:E15"].CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter;
//Apply row height and column width to look good
worksheet.Range["A1"].ColumnWidth = 36;
worksheet.Range["B1"].ColumnWidth = 11;
worksheet.Range["C1"].ColumnWidth = 8;
worksheet.Range["D1:E1"].ColumnWidth = 18;
worksheet.Range["A1"].RowHeight = 47;
worksheet.Range["A2"].RowHeight = 15;
worksheet.Range["A3:A4"].RowHeight = 15;
worksheet.Range["A5"].RowHeight = 18;
worksheet.Range["A6"].RowHeight = 29;
worksheet.Range["A7"].RowHeight = 18;
worksheet.Range["A8"].RowHeight = 15;
worksheet.Range["A9:A14"].RowHeight = 15;
worksheet.Range["A15:A23"].RowHeight = 18;
//Saving the Excel to the MemoryStream
MemoryStream stream = new MemoryStream();
workbook.SaveAs(stream);
//Set the position as '0'.
stream.Position = 0;
//Download the Excel file in the browser
FileStreamResult fileStreamResult = new FileStreamResult(stream, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
fileStreamResult.FileDownloadName = "Output.xlsx";
return fileStreamResult;
}'Create an instance of ExcelEngine
Using excelEngine As ExcelEngine = New ExcelEngine()
Dim application As IApplication = excelEngine.Excel
application.DefaultVersion = ExcelVersion.Xlsx
'Create a workbook
Dim workbook As IWorkbook = application.Workbooks.Create(1)
Dim worksheet As IWorksheet = workbook.Worksheets(0)
'Adding a picture
Dim imageStream As FileStream = New FileStream("AdventureCycles-Logo.png", FileMode.Open, FileAccess.Read)
Dim shape As IPictureShape = worksheet.Pictures.AddPicture(1, 1, imageStream, 20, 20)
'Disable gridlines in the worksheet
worksheet.IsGridLinesVisible = False
'Enter values to the cells from A3 to A5
worksheet.Range("A3").Text = "46036 Michigan Ave"
worksheet.Range("A4").Text = "Canton, USA"
worksheet.Range("A5").Text = "Phone: +1 231-231-2310"
'Make the text bold
worksheet.Range("A3:A5").CellStyle.Font.Bold = True
'Merge cells
worksheet.Range("D1:E1").Merge()
'Enter text to the cell D1 and apply formatting.
worksheet.Range("D1").Text = "INVOICE"
worksheet.Range("D1").CellStyle.Font.Bold = True
worksheet.Range("D1").CellStyle.Font.RGBColor = Color.FromArgb(42, 118, 189)
worksheet.Range("D1").CellStyle.Font.Size = 35
'Apply alignment in the cell D1
worksheet.Range("D1").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignRight
worksheet.Range("D1").CellStyle.VerticalAlignment = ExcelVAlign.VAlignTop
'Enter values to the cells from D5 to E8
worksheet.Range("D5").Text = "INVOICE#"
worksheet.Range("E5").Text = "DATE"
worksheet.Range("D6").Number = 1028
worksheet.Range("E6").Value = "12/31/2018"
worksheet.Range("D7").Text = "CUSTOMER ID"
worksheet.Range("E7").Text = "TERMS"
worksheet.Range("D8").Number = 564
worksheet.Range("E8").Text = "Due Upon Receipt"
'Apply RGB back color to the cells from D5 to E8
worksheet.Range("D5:E5").CellStyle.Color = Color.FromArgb(42, 118, 189)
worksheet.Range("D7:E7").CellStyle.Color = Color.FromArgb(42, 118, 189)
'Apply known colors to the text in cells D5 to E8
worksheet.Range("D5:E5").CellStyle.Font.Color = ExcelKnownColors.White
worksheet.Range("D7:E7").CellStyle.Font.Color = ExcelKnownColors.White
'Make the text as bold from D5 to E8
worksheet.Range("D5:E8").CellStyle.Font.Bold = True
'Apply alignment to the cells from D5 to E8
worksheet.Range("D5:E8").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter
worksheet.Range("D5:E5").CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter
worksheet.Range("D7:E7").CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter
worksheet.Range("D6:E6").CellStyle.VerticalAlignment = ExcelVAlign.VAlignTop
'Enter value and applying formatting in the cell A7
worksheet.Range("A7").Text = " BILL TO"
worksheet.Range("A7").CellStyle.Color = Color.FromArgb(42, 118, 189)
worksheet.Range("A7").CellStyle.Font.Bold = True
worksheet.Range("A7").CellStyle.Font.Color = ExcelKnownColors.White
'Apply alignment
worksheet.Range("A7").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignLeft
worksheet.Range("A7").CellStyle.VerticalAlignment = ExcelVAlign.VAlignCenter
'Enter values in the cells A8 to A12
worksheet.Range("A8").Text = "Steyn"
worksheet.Range("A9").Text = "Great Lakes Food Market"
worksheet.Range("A10").Text = "20 Whitehall Rd"
worksheet.Range("A11").Text = "North Muskegon,USA"
worksheet.Range("A12").Text = "+1 231-654-0000"
'Create a Hyperlink for e-mail in the cell A13
Dim hyperlink As IHyperLink = worksheet.HyperLinks.Add(worksheet.Range("A13"))
hyperlink.Type = ExcelHyperLinkType.Url
hyperlink.Address = "[email protected]"
hyperlink.ScreenTip = "Send Mail"
'Merge column A and B from row 15 to 22
worksheet.Range("A15:B15").Merge()
worksheet.Range("A16:B16").Merge()
worksheet.Range("A17:B17").Merge()
worksheet.Range("A18:B18").Merge()
worksheet.Range("A19:B19").Merge()
worksheet.Range("A20:B20").Merge()
worksheet.Range("A21:B21").Merge()
worksheet.Range("A22:B22").Merge()
'Enter details of products and prices
worksheet.Range("A15").Text = " DESCRIPTION"
worksheet.Range("C15").Text = "QTY"
worksheet.Range("D15").Text = "UNIT PRICE"
worksheet.Range("E15").Text = "AMOUNT"
worksheet.Range("A16").Text = "Cabrales Cheese"
worksheet.Range("A17").Text = "Chocos"
worksheet.Range("A18").Text = "Pasta"
worksheet.Range("A19").Text = "Cereals"
worksheet.Range("A20").Text = "Ice Cream"
worksheet.Range("C16").Number = 3
worksheet.Range("C17").Number = 2
worksheet.Range("C18").Number = 1
worksheet.Range("C19").Number = 4
worksheet.Range("C20").Number = 3
worksheet.Range("D16").Number = 21
worksheet.Range("D17").Number = 54
worksheet.Range("D18").Number = 10
worksheet.Range("D19").Number = 20
worksheet.Range("D20").Number = 30
worksheet.Range("D23").Text = "Total"
'Apply number format
worksheet.Range("D16:E22").NumberFormat = "$0.00"
worksheet.Range("E23").NumberFormat = "$0.00"
'Apply incremental formula for column Amount by multiplying Qty and UnitPrice
application.EnableIncrementalFormula = True
worksheet.Range("E16:E20").Formula = "=C16*D16"
'Formula for Sum the total
worksheet.Range("E23").Formula = "=SUM(E16:E22)"
'Apply borders
worksheet.Range("A16:E22").CellStyle.Borders(ExcelBordersIndex.EdgeTop).LineStyle = ExcelLineStyle.Thin
worksheet.Range("A16:E22").CellStyle.Borders(ExcelBordersIndex.EdgeBottom).LineStyle = ExcelLineStyle.Thin
worksheet.Range("A16:E22").CellStyle.Borders(ExcelBordersIndex.EdgeTop).Color = ExcelKnownColors.Grey_25_percent
worksheet.Range("A16:E22").CellStyle.Borders(ExcelBordersIndex.EdgeBottom).Color = ExcelKnownColors.Grey_25_percent
worksheet.Range("A23:E23").CellStyle.Borders(ExcelBordersIndex.EdgeTop).LineStyle = ExcelLineStyle.Thin
worksheet.Range("A23:E23").CellStyle.Borders(ExcelBordersIndex.EdgeBottom).LineStyle = ExcelLineStyle.Thin
worksheet.Range("A23:E23").CellStyle.Borders(ExcelBordersIndex.EdgeTop).Color = ExcelKnownColors.Black
worksheet.Range("A23:E23").CellStyle.Borders(ExcelBordersIndex.EdgeBottom).Color = ExcelKnownColors.Black
'Apply font setting for cells with product details
worksheet.Range("A3:E23").CellStyle.Font.FontName = "Arial"
worksheet.Range("A3:E23").CellStyle.Font.Size = 10
worksheet.Range("A15:E15").CellStyle.Font.Color = ExcelKnownColors.White
worksheet.Range("A15:E15").CellStyle.Font.Bold = True
worksheet.Range("D23:E23").CellStyle.Font.Bold = True
'Apply cell color
worksheet.Range("A15:E15").CellStyle.Color = Color.FromArgb(42, 118, 189)
'Apply alignment to cells with product details
worksheet.Range("A15").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignLeft
worksheet.Range("C15:C22").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter
worksheet.Range("D15:E15").CellStyle.HorizontalAlignment = ExcelHAlign.HAlignCenter
'Apply row height and column width to look good
worksheet.Range("A1").ColumnWidth = 36
worksheet.Range("B1").ColumnWidth = 11
worksheet.Range("C1").ColumnWidth = 8
worksheet.Range("D1:E1").ColumnWidth = 18
worksheet.Range("A1").RowHeight = 47
worksheet.Range("A2").RowHeight = 15
worksheet.Range("A3:A4").RowHeight = 15
worksheet.Range("A5").RowHeight = 18
worksheet.Range("A6").RowHeight = 29
worksheet.Range("A7").RowHeight = 18
worksheet.Range("A8").RowHeight = 15
worksheet.Range("A9:A14").RowHeight = 15
worksheet.Range("A15:A23").RowHeight = 18
'Saving the Excel to the MemoryStream
Dim stream As MemoryStream = New MemoryStream()
workbook.SaveAs(stream)
'Set the position as '0'.
stream.Position = 0
'Download the Excel file in the browser
Dim fileStreamResult As FileStreamResult = New FileStreamResult(stream, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
fileStreamResult.FileDownloadName = "Output.xlsx"
Return fileStreamResult
End UsingA complete working example of how to create an Excel file in ASP.NET Core in C# is present on this GitHub page.
By executing the program, you will get the Excel file as below.
Read and Edit Excel file
The following code snippet illustrates how to read and edit an Excel file in ASP.NET Core.
Step 1: Add the Sample.xlsx file in the project folder (or wwwroot) and configure the project to copy it to the output directory by setting Copy to Output Directory to Copy if newer in the file properties.
//New instance of ExcelEngine is created
//Equivalent to launching Microsoft Excel with no workbooks open
//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
//Instantiate the Excel application object
IApplication application = excelEngine.Excel;
//Assigns default application version
application.DefaultVersion = ExcelVersion.Xlsx;
//A existing workbook is opened.
IWorkbook workbook = application.Workbooks.Open("Sample.xlsx");
//Access first worksheet from the workbook.
IWorksheet worksheet = workbook.Worksheets[0];
//Set the text in cell A3.
worksheet.Range["A3"].Text = "Hello World";
//Access a cell value from Excel
var value = worksheet.Range["A1"].Value;
//Defining the ContentType for the Excel file.
string ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
//Define the file name.
string fileName = "Output.xlsx";
//Creating stream object.
MemoryStream stream = new MemoryStream();
//Saving the workbook to the stream in XLSX format.
workbook.SaveAs(stream);
stream.Position = 0;
//Closing the workbook and disposing the engine.
workbook.Close();
excelEngine.Dispose();
//Creates a FileStreamResult object by using the file contents, content type, and file name.
return File(stream, ContentType, fileName);
}A complete working example of how to read and edit an Excel file in ASP.NET Core in C# is present on this GitHub page.
NOTE
_hostingEnvironment is the base path for input files of type IHostingEnvironment.
Click here to explore the rich set of Syncfusion® Excel library (XlsIO) features.
An online sample link to create an Excel document in ASP.NET Core.