Create, read, and edit Excel files in UWP
22 Jul 202624 minutes to read
The Syncfusion .NET Excel Library (XlsIO) for UWP platform can be used to create, read, and edit Excel files. It can also convert Excel files to PDF.
Create a simple Excel report
The following steps illustrate creating a simple Invoice-formatted Excel document in a UWP application.
Prerequisites:
- Visual Studio 2017 or later with the Universal Windows Platform development workload installed.
- Ensure the project targets a supported UWP build and that NuGet Package Manager is available.
Step 1: Create a new C# Blank App (Universal Windows) project.
Step 2: Install the Syncfusion.XlsIO.UWP NuGet package as a reference to your UWP 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 3: Right-click the MainPage.xaml file in Solution Explorer, select View Code, and add a new click handler named OnButtonClicked in MainPage.xaml.cs. Then add a new button in the MainPage.xaml as shown below.
<Page
x:Class="GettingStarted_UWP.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:GettingStarted_UWP"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid>
<Button x:Name="button" Content="Create Document" Click="OnButtonClicked" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Grid>
</Page>Step 4: Include the following namespaces in the MainPage.xaml.cs file.
using Syncfusion.XlsIO;
using System.Reflection;
using Windows.Storage.Pickers;
using Windows.Storage;
using Windows.UI;
using System.IO;Imports Syncfusion.XlsIO
Imports System.Reflection
Imports Windows.Storage.Pickers
Imports Windows.Storage
Imports Windows.UI
Imports System.IONOTE
Before proceeding, add the
AdventureCycles-Logo.pngimage to the project and set its Build Action to Embedded Resource in the file properties so it can be loaded usingGetManifestResourceStream.
Step 5: Include the following code snippet in the click event of the button in MainPage.xaml.cs to create an Excel file, save it as a physical file, and open the file for viewing.
//Create an instance of ExcelEngine.
using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
application.DefaultVersion = ExcelVersion.Xlsx;
//Create a workbook with a worksheet
IWorkbook workbook = application.Workbooks.Create(1);
//Access first worksheet from the workbook instance.
IWorksheet worksheet = workbook.Worksheets[0];
Assembly executingAssembly = typeof(MainPage).GetTypeInfo().Assembly;
Stream inputStream = executingAssembly.GetManifestResourceStream("GettingStarted_UWP.AdventureCycles-Logo.png");
//Add a picture
IPictureShape shape = worksheet.Pictures.AddPicture(1, 1, inputStream, 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 = ColorHelper.FromArgb(0, 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 = ColorHelper.FromArgb(0, 42, 118, 189);
worksheet.Range["D7:E7"].CellStyle.Color = ColorHelper.FromArgb(0, 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 = ColorHelper.FromArgb(0, 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";
//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";
//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();
//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 = ColorHelper.FromArgb(0, 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;
// Save the Workbook
StorageFile storageFile;
if (!(Windows.Foundation.Metadata.ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons")))
{
FileSavePicker savePicker = new FileSavePicker();
savePicker.SuggestedStartLocation = PickerLocationId.Desktop;
savePicker.SuggestedFileName = "Output";
savePicker.FileTypeChoices.Add("Excel Files", new List<string>() { ".xlsx" });
storageFile = await savePicker.PickSaveFileAsync();
}
else
{
StorageFolder local = Windows.Storage.ApplicationData.Current.LocalFolder;
storageFile = await local.CreateFileAsync("Output.xlsx", CreationCollisionOption.ReplaceExisting);
}
//Saving the workbook
await workbook.SaveAsAsync(storageFile);
// Launch the saved file
await Windows.System.Launcher.LaunchFileAsync(storageFile);
}Private Sub OnButtonClicked(ByVal sender As Object, ByVal args As EventArgs)
'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 executingAssembly As Assembly = GetType(MainPage).GetTypeInfo().Assembly
Dim inputStream As Stream = executingAssembly.GetManifestResourceStream("GettingStarted_UWP.AdventureCycles-Logo.png")
Dim shape As IPictureShape = worksheet.Pictures.AddPicture(1, 1, inputStream, 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 = ColorHelper.FromArgb(0, 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 = ColorHelper.FromArgb(0, 42, 118, 189)
worksheet.Range("D7:E7").CellStyle.Color = ColorHelper.FromArgb(0,42, 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 = ColorHelper.FromArgb(0, 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 = ColorHelper.FromArgb(0, 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
'Save the Workbook
Dim storageFile As StorageFile
If Not Windows.Foundation.Metadata.ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons") Then
Dim savePicker As New FileSavePicker()
savePicker.SuggestedStartLocation = PickerLocationId.Desktop
savePicker.SuggestedFileName = "Output"
savePicker.FileTypeChoices.Add("Excel Files", New List(Of String) From {".xlsx"})
storageFile = Await savePicker.PickSaveFileAsync()
Else
Dim local As StorageFolder = Windows.Storage.ApplicationData.Current.LocalFolder
storageFile = Await local.CreateFileAsync("Output.xlsx", CreationCollisionOption.ReplaceExisting)
End If
'Saving the workbook
Await workbook.SaveAsAsync(storageFile)
'Launch the saved file
Await Windows.System.Launcher.LaunchFileAsync(storageFile)
End UsingA complete working example of how to create an Excel file in UWP 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 illustrates how to read and edit an Excel file in UWP.
//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
IApplication application = excelEngine.Excel;
//Instantiates the File Picker.
FileOpenPicker openPicker = new FileOpenPicker();
openPicker.SuggestedStartLocation = PickerLocationId.Desktop;
openPicker.FileTypeFilter.Add(".xlsx");
openPicker.FileTypeFilter.Add(".xls");
StorageFile openFile = await openPicker.PickSingleFileAsync();
//Opens the workbook.
IWorkbook workbook = await application.Workbooks.OpenAsync(openFile);
//Access first worksheet from the workbook.
IWorksheet worksheet = workbook.Worksheets[0];
//Set Text in cell A3.
worksheet.Range["A3"].Text = "Hello World";
//Access a cell value from Excel
var value = worksheet.Range["A1"].Value;
//Sets workbook version.
workbook.Version = ExcelVersion.Xlsx;
//Initializes FileSavePicker.
FileSavePicker savePicker = new FileSavePicker();
savePicker.SuggestedStartLocation = PickerLocationId.Desktop;
savePicker.SuggestedFileName = "CreateSpreadsheet";
savePicker.FileTypeChoices.Add("Excel Files", new List<string>() { ".xlsx" });
//Creates a storage file from FileSavePicker.
StorageFile storageFile = await savePicker.PickSaveFileAsync();
//Saves changes to the specified storage file.
await workbook.SaveAsAsync(storageFile);
workbook.Close();
excelEngine.Dispose();
}'Create an instance of ExcelEngine
Using excelEngine As New ExcelEngine()
Dim application As IApplication = excelEngine.Excel
'Instantiates the File Save Picker.
Dim openPicker As New FileOpenPicker()
openPicker.SuggestedStartLocation = PickerLocationId.Desktop
openPicker.FileTypeFilter.Add(".xlsx")
openPicker.FileTypeFilter.Add(".xls")
Dim openFile As StorageFile = Await openPicker.PickSingleFileAsync()
'Opens the Workbook.
Dim workbook As IWorkbook = Await application.Workbooks.OpenAsync(openFile)
'Access first worksheet from the workbook.
Dim worksheet As IWorksheet = workbook.Worksheets(0)
'Set Text in cell A3.
worksheet.Range("A3").Text = "Hello World"
'Access a cell value from Excel
Dim value As Object = worksheet.Range("A1").Value
'Sets workbook version.
workbook.Version = ExcelVersion.Xlsx
'Initializes FileSavePicker.
Dim savePicker As New FileSavePicker()
savePicker.SuggestedStartLocation = PickerLocationId.Desktop
savePicker.SuggestedFileName = "CreateSpreadsheet"
savePicker.FileTypeChoices.Add("Excel Files", New List(Of String)() From {".xlsx"})
'Creates a storage file from FileSavePicker.
Dim storageFile As StorageFile = Await savePicker.PickSaveFileAsync()
'Saves changes to the specified storage file.
Await workbook.SaveAsAsync(storageFile)
workbook.Close()
excelEngine.Dispose()
End UsingA complete working example of how to read and edit an Excel file in UWP in C# is present on this GitHub page.
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.