# Create, read and edit a PowerPoint file in .NET MAUI 

Syncfusion<sup>&reg;</sup> Essential<sup>&reg;</sup> Presentation is a [.NET MAUI PowerPoint library](https://www.syncfusion.com/powerpoint-framework/maui/powerpoint-library) used to create, read, and edit PowerPoint documents programmatically without Microsoft PowerPoint or interop dependencies. Using this library, you can create a PowerPoint document in .NET MAUI.

## Steps to create PowerPoint file in .NET MAUI

{% tabcontents %}

{% tabcontent Visual Studio %}

**Prerequisites:**

* Visual Studio 2022.
* Install [.NET 8 SDK](https://dotnet.microsoft.com/en-us/download/dotnet/8.0) or later.
* For more details about installation, refer [here](https://learn.microsoft.com/en-us/dotnet/maui/get-started/installation?view=net-maui-7.0&tabs=vswin).

Step 1: Create a new C# .NET MAUI app. Select **.NET MAUI App (Preview)** from the template and click the **Next** button.

![Create the MAUI app in Visual Studio](Workingwith-MAUI/Create_Project.png)

Step 2: Enter the project name and click **Create**.

![Create a project name for your new project](Workingwith-MAUI/Configure.png)

Step 3: Install the Syncfusion.Presentation.NET NuGet package as a reference to your project from [NuGet.org](https://www.nuget.org/).

![Install the Presentation .NET NuGet package](Workingwith-MAUI/Install_Nuget.png)

N> Starting with v16.2.0.x, if you reference Syncfusion<sup>&reg;</sup> 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](https://help.syncfusion.com/common/essential-studio/licensing/overview) to know about registering Syncfusion<sup>&reg;</sup> license key in your application to use our components.

Step 4: Add a new button to the **MainPage.xaml** as shown below.

{% tabs %}

{% highlight c# tabtitle="C#" %}

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="CreatePowerPoint.MainPage"
             BackgroundColor="{DynamicResource SecondaryColor}">
    <ScrollView>
        <Grid RowSpacing="25" RowDefinitions="Auto,Auto,Auto,Auto,*"
              Padding="{OnPlatform iOS='30,60,30,30', Default='30'}">
            <Button 
                Text="Create Presentation"
                FontAttributes="Bold"
                Grid.Row="0"
                SemanticProperties.Hint="Creates Presentation you click"
                Clicked="CreatePresentation"
                HorizontalOptions="Center" />
        </Grid>
    </ScrollView>
</ContentPage>

{% endhighlight %}

{% endtabs %}

Step 5: Include the following namespaces in the **MainPage.xaml.cs** file.

{% tabs %}

{% highlight c# tabtitle="C#" %}
using Syncfusion.Presentation;
using System.IO;
using System.Reflection;
{% endhighlight %}

{% endtabs %}

Step 6: Add a new action method **CreatePresentation** in MainPage.xaml.cs and include the below code snippet to **create a PowerPoint file**.

{% tabs %}

{% highlight c# tabtitle="C#" %}
//Creates a new instance of the PowerPoint Presentation file.
using IPresentation pptxDoc = Presentation.Create();
//Adds a new slide to the file and apply background color.
ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.TitleOnly);
//Specifies the fill type and fill color for the slide background.
slide.Background.Fill.FillType = FillType.Solid;
slide.Background.Fill.SolidFill.Color = ColorObject.FromArgb(232, 241, 229);

//Adds title content to the slide by accessing the title placeholder of the TitleOnly layout-slide.
IShape titleShape = slide.Shapes[0] as IShape;
titleShape.TextBody.AddParagraph("Company History").HorizontalAlignment = HorizontalAlignmentType.Center;

//Adds description content to the slide by adding a new TextBox.
IShape descriptionShape = slide.AddTextBox(53.22, 141.73, 874.19, 77.70);
descriptionShape.TextBody.Text = "IMN Solutions PVT LTD is the software company, established in 1987, by George Milton. The company has been listed as the trusted partner for many high-profile organizations since 1988 and got awards for quality products from reputed organizations.";

//Adds bullet points to the slide.
IShape bulletPointsShape = slide.AddTextBox(53.22, 270, 437.90, 116.32);
//Adds a paragraph for a bullet point.
IParagraph firstPara = bulletPointsShape.TextBody.AddParagraph("The company acquired the MCY corporation for 20 billion dollars and became the top revenue maker for the year 2015.");
//Formats how the bullets should be displayed.
firstPara.ListFormat.Type = ListType.Bulleted;
firstPara.LeftIndent = 35;
firstPara.FirstLineIndent = -35;
//Adds another paragraph for the next bullet point.
IParagraph secondPara = bulletPointsShape.TextBody.AddParagraph("The company is participating in top open source projects in automation industry.");
//Formats how the bullets should be displayed.
secondPara.ListFormat.Type = ListType.Bulleted;
secondPara.LeftIndent = 35;
secondPara.FirstLineIndent = -35;

Assembly assembly = typeof(MainPage).GetTypeInfo().Assembly;
string resourcePath = "CreatePowerPoint.Resources.Presentation.Image.png";
//Gets a picture as stream.
Stream pictureStream = assembly.GetManifestResourceStream(resourcePath);
//Adds the picture to a slide by specifying its size and position.
slide.Shapes.AddPicture(pictureStream, 499.79, 238.59, 364.54, 192.16);

//Adds an auto-shape to the slide.
IShape stampShape = slide.Shapes.AddShape(AutoShapeType.Explosion1, 48.93, 430.71, 104.13, 80.54);
//Formats the auto-shape color by setting the fill type and text.
stampShape.Fill.FillType = FillType.None;
stampShape.TextBody.AddParagraph("IMN").HorizontalAlignment = HorizontalAlignmentType.Center;

//Saves the presentation to the memory stream.
using MemoryStream stream = new();
pptxDoc.Save(stream);
stream.Position = 0;
//Saves the memory stream as file.
SaveService saveService = new();
saveService.SaveAndView("Sample.pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation", stream);
{% endhighlight %}

{% endtabs %}

Step 7: Run the Application.

1. Select the target framework, device or emulator.
2. Press <kbd>F5</kbd> to run the application.

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PowerPoint-Examples/tree/master/Getting-started/.NET-MAUI/Create-PowerPoint-presentation).

By executing the program, you will get the **PowerPoint slide** as follows.

![MAUI output PowerPoint slide](Workingwith-MAUI/GettingStartedSample.png)

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PowerPoint-Examples/tree/master/Getting-started/.NET-MAUI/Read-and-edit-presentation).

## Helper files for .NET MAUI

Download the helper files from this [link](https://www.syncfusion.com/downloads/support/directtrac/general/ze/HelperFiles_Presentation-1440845842.zip) and add them into the mentioned project. These helper files allow you to save the stream as a physical file and open the file for viewing.

<table>
  <tr>
  <td>
    <b>Folder Name</b>
  </td>
  <td>
    <b>File Name</b>
  </td>
  <td>
    <b>Summary</b>
  </td>
  </tr>
  <tr>
  <td>
    .NET MAUI Project
  </td>
  <td>
    SaveService.cs
  </td>
  <td>Represent the base class for save operation.
  </td>
  </tr>
  <tr>
  <td>
    Windows
  </td>
  <td>
    SaveWindows.cs
  </td>
  <td>Save implementation for Windows.
  </td>
  </tr>
  <tr>
  <td>
    Android
  </td>
  <td>
    SaveAndroid.cs
  </td>
  <td>Save implementation for Android device.
  </td>
  </tr>
  <tr>
  <td>
    Mac Catalyst
  </td>
  <td>
    SaveMac.cs
  </td>
  <td>Save implementation for Mac Catalyst device.
  </td>
  </tr>
  <tr>
  <td rowspan="2">
    iOS
  </td>
  <td>
    SaveIOS.cs
  </td>
  <td>
    Save implementation for iOS device.
  </td>
  </tr>
  <tr>
  <td>
    PreviewControllerDS.cs<br/>QLPreviewItemFileSystem.cs
  </td>
  <td>
    Helper classes for viewing the <b>PowerPoint file</b> in iOS device.
  </td>
  </tr>
</table>

{% endtabcontent %}

{% tabcontent Visual Studio Code %}

**Prerequisites:**

* Install the latest .NET SDK and Visual Studio Code.
* Open Visual Studio Code and install the [.NET MAUI for Visual Studio Code extension](https://marketplace.visualstudio.com/items?itemName=ms-dotnettools.dotnet-maui) from the Extensions Marketplace.
* Follow the step-by-step setup guide:
  - [Set up .NET MAUI with Visual Studio Code](https://learn.microsoft.com/en-us/dotnet/maui/get-started/installation?view=net-maui-9.0&tabs=visual-studio-code)
  - [Steps for each platform](https://learn.microsoft.com/en-us/dotnet/maui/get-started/first-app?pivots=devices-windows&view=net-maui-9.0&tabs=visual-studio-code) 

Step 1: Create a new C# .NET MAUI app project.
* Open the command palette by pressing <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>P</kbd> and type **.NET:New Project** and enter.
* Choose the **.NET MAUI App** template.

![Choose .NET MAUI app from template](Workingwith-MAUI/MAUI-app-template.png)

* Select the project location, type the project name and press enter.
* Then choose **Create project**.

Step 2: To **create a PowerPoint document in .NET MAUI app**, install [Syncfusion.Presentation.NET.Core](https://www.nuget.org/packages/Syncfusion.Presentation.NET.Core) to the MAUI project.
* Press <kbd>Ctrl</kbd> + <kbd>`</kbd> (backtick) to open the integrated terminal in Visual Studio Code.
* Ensure you're in the project root directory where your .csproj file is located.
* Run the command `dotnet add package Syncfusion.Presentation.Net.Core` to install the NuGet package.

![Add Syncfusion.Presentation.Net.Core NuGet package](Workingwith-MAUI/Command-to-add-NuGet-package-MAUI.png)

N> Starting with v16.2.0.x, if you reference Syncfusion<sup>&reg;</sup> 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](https://help.syncfusion.com/common/essential-studio/licensing/overview) to know about registering Syncfusion<sup>&reg;</sup> license key in your application to use our components.

Step 3: Add a new button to the **MainPage.xaml** as shown below.

{% tabs %}

{% highlight c# tabtitle="C#" %}

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="CreatePowerPoint.MainPage"
             BackgroundColor="{DynamicResource SecondaryColor}">
    <ScrollView>
        <Grid RowSpacing="25" RowDefinitions="Auto,Auto,Auto,Auto,*"
              Padding="{OnPlatform iOS='30,60,30,30', Default='30'}">
            <Button 
                Text="Create Presentation"
                FontAttributes="Bold"
                Grid.Row="0"
                SemanticProperties.Hint="Creates Presentation you click"
                Clicked="CreatePresentation"
                HorizontalOptions="Center" />
        </Grid>
    </ScrollView>
</ContentPage>

{% endhighlight %}

{% endtabs %}

Step 4: Include the following namespaces in the **MainPage.xaml.cs** file.

{% tabs %}

{% highlight c# tabtitle="C#" %}
using Syncfusion.Presentation;
using System.IO;
using System.Reflection;
{% endhighlight %}

{% endtabs %}

Step 5: Add a new action method **CreatePresentation** in MainPage.xaml.cs and include the below code snippet to **create a PowerPoint file**.

{% tabs %}

{% highlight c# tabtitle="C#" %}
//Creates a new instance of the PowerPoint Presentation file.
using IPresentation pptxDoc = Presentation.Create();
//Adds a new slide to the file and apply background color.
ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.TitleOnly);
//Specifies the fill type and fill color for the slide background.
slide.Background.Fill.FillType = FillType.Solid;
slide.Background.Fill.SolidFill.Color = ColorObject.FromArgb(232, 241, 229);

//Adds title content to the slide by accessing the title placeholder of the TitleOnly layout-slide.
IShape titleShape = slide.Shapes[0] as IShape;
titleShape.TextBody.AddParagraph("Company History").HorizontalAlignment = HorizontalAlignmentType.Center;

//Adds description content to the slide by adding a new TextBox.
IShape descriptionShape = slide.AddTextBox(53.22, 141.73, 874.19, 77.70);
descriptionShape.TextBody.Text = "IMN Solutions PVT LTD is the software company, established in 1987, by George Milton. The company has been listed as the trusted partner for many high-profile organizations since 1988 and got awards for quality products from reputed organizations.";

//Adds bullet points to the slide.
IShape bulletPointsShape = slide.AddTextBox(53.22, 270, 437.90, 116.32);
//Adds a paragraph for a bullet point.
IParagraph firstPara = bulletPointsShape.TextBody.AddParagraph("The company acquired the MCY corporation for 20 billion dollars and became the top revenue maker for the year 2015.");
//Formats how the bullets should be displayed.
firstPara.ListFormat.Type = ListType.Bulleted;
firstPara.LeftIndent = 35;
firstPara.FirstLineIndent = -35;
//Adds another paragraph for the next bullet point.
IParagraph secondPara = bulletPointsShape.TextBody.AddParagraph("The company is participating in top open source projects in automation industry.");
//Formats how the bullets should be displayed.
secondPara.ListFormat.Type = ListType.Bulleted;
secondPara.LeftIndent = 35;
secondPara.FirstLineIndent = -35;

Assembly assembly = typeof(MainPage).GetTypeInfo().Assembly;
string resourcePath = "CreatePowerPoint.Resources.Presentation.Image.png";
//Gets a picture as stream.
Stream pictureStream = assembly.GetManifestResourceStream(resourcePath);
//Adds the picture to a slide by specifying its size and position.
slide.Shapes.AddPicture(pictureStream, 499.79, 238.59, 364.54, 192.16);

//Adds an auto-shape to the slide.
IShape stampShape = slide.Shapes.AddShape(AutoShapeType.Explosion1, 48.93, 430.71, 104.13, 80.54);
//Formats the auto-shape color by setting the fill type and text.
stampShape.Fill.FillType = FillType.None;
stampShape.TextBody.AddParagraph("IMN").HorizontalAlignment = HorizontalAlignmentType.Center;

//Saves the presentation to the memory stream.
using MemoryStream stream = new();
pptxDoc.Save(stream);
stream.Position = 0;
//Saves the memory stream as file.
SaveService saveService = new();
saveService.SaveAndView("Sample.pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation", stream);
{% endhighlight %}

{% endtabs %}

Step 6: Run the Application.

1. Select the target framework, device or emulator.
2. Press <kbd>F5</kbd> to run the application.

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PowerPoint-Examples/tree/master/Getting-started/.NET-MAUI/Create-PowerPoint-presentation).

By executing the program, you will get the **PowerPoint slide** as follows.

![MAUI output PowerPoint slide](Workingwith-MAUI/GettingStartedSample.png)

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PowerPoint-Examples/tree/master/Getting-started/.NET-MAUI/Read-and-edit-presentation).

## Helper files for .NET MAUI

Download the helper files from this [link](https://www.syncfusion.com/downloads/support/directtrac/general/ze/HelperFiles_Presentation-1440845842.zip) and add them into the mentioned project. These helper files allow you to save the stream as a physical file and open the file for viewing.

<table>
  <tr>
  <td>
    <b>Folder Name</b>
  </td>
  <td>
    <b>File Name</b>
  </td>
  <td>
    <b>Summary</b>
  </td>
  </tr>
  <tr>
  <td>
    .NET MAUI Project
  </td>
  <td>
    SaveService.cs
  </td>
  <td>Represent the base class for save operation.
  </td>
  </tr>
  <tr>
  <td>
    Windows
  </td>
  <td>
    SaveWindows.cs
  </td>
  <td>Save implementation for Windows.
  </td>
  </tr>
  <tr>
  <td>
    Android
  </td>
  <td>
    SaveAndroid.cs
  </td>
  <td>Save implementation for Android device.
  </td>
  </tr>
  <tr>
  <td>
    Mac Catalyst
  </td>
  <td>
    SaveMac.cs
  </td>
  <td>Save implementation for Mac Catalyst device.
  </td>
  </tr>
  <tr>
  <td rowspan="2">
    iOS
  </td>
  <td>
    SaveIOS.cs
  </td>
  <td>
    Save implementation for iOS device.
  </td>
  </tr>
  <tr>
  <td>
    PreviewControllerDS.cs<br/>QLPreviewItemFileSystem.cs
  </td>
  <td>
    Helper classes for viewing the <b>PowerPoint file</b> in iOS device.
  </td>
  </tr>
</table>

{% endtabcontent %}

{% tabcontent JetBrains Rider %}

**Prerequisites:**

* JetBrains Rider.
* Install .NET 8 SDK or later.
* For more details about installation, refer [here](https://www.jetbrains.com/help/rider/MAUI.html).

Step 1. Open JetBrains Rider and create a new .NET MAUI App project.
* Launch JetBrains Rider.
* Click **New solution** on the welcome screen.

![Launch JetBrains Rider](Workingwith-MAUI/Launch-JetBrains-Rider.png)

* In the New Solution dialog, select **Project Type** as **MAUI**.
* Select the target framework (e.g., .NET 8.0, .NET 9.0).
* Choose **Type** as **App**.
* Enter a project name and specify the location.
* Click create.

![Creating a new .NET MAUI App in JetBrains Rider](Workingwith-MAUI/Create-MAUI-application.png)

Step 2: Install the NuGet package from [NuGet.org](https://www.nuget.org/).
* Click the NuGet icon in the Rider toolbar and type [Syncfusion.Presentation.Net.Core](https://www.nuget.org/packages/Syncfusion.Presentation.Net.Core) in the search bar.
* Ensure that nuget.org is selected as the package source.
* Select the latest Syncfusion.Presentation.Net.Core NuGet package from the list.
* Click the + (Add) button to add the package.

![Select the Syncfusion.Presentation.Net.Core NuGet package](Workingwith-MAUI/Select-Syncfusion.Presentation.Net.Core-NuGet.png)

* Click the **Install** button to complete the installation.

![Install the Syncfusion.Presentation.Net.Core NuGet package](Workingwith-MAUI/Install-Syncfusion.Presentation.Net.Core-NuGet.png)

N> 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](https://help.syncfusion.com/common/essential-studio/licensing/overview) to know about registering Syncfusion license key in your application to use our components.

Step 3: Add a new button to the **MainPage.xaml** as shown below.

{% tabs %}

{% highlight c# tabtitle="C#" %}

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="CreatePowerPoint.MainPage"
             BackgroundColor="{DynamicResource SecondaryColor}">
    <ScrollView>
        <Grid RowSpacing="25" RowDefinitions="Auto,Auto,Auto,Auto,*"
              Padding="{OnPlatform iOS='30,60,30,30', Default='30'}">
            <Button 
                Text="Create Presentation"
                FontAttributes="Bold"
                Grid.Row="0"
                SemanticProperties.Hint="Creates Presentation you click"
                Clicked="CreatePresentation"
                HorizontalOptions="Center" />
        </Grid>
    </ScrollView>
</ContentPage>

{% endhighlight %}

{% endtabs %}

Step 4: Include the following namespaces in the **MainPage.xaml.cs** file.

{% tabs %}

{% highlight c# tabtitle="C#" %}
using Syncfusion.Presentation;
using System.IO;
using System.Reflection;
{% endhighlight %}

{% endtabs %}

Step 5: Add a new action method **CreatePresentation** in MainPage.xaml.cs and include the below code snippet to **create a PowerPoint file**.

{% tabs %}

{% highlight c# tabtitle="C#" %}
//Creates a new instance of the PowerPoint Presentation file.
using IPresentation pptxDoc = Presentation.Create();
//Adds a new slide to the file and apply background color.
ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.TitleOnly);
//Specifies the fill type and fill color for the slide background.
slide.Background.Fill.FillType = FillType.Solid;
slide.Background.Fill.SolidFill.Color = ColorObject.FromArgb(232, 241, 229);

//Adds title content to the slide by accessing the title placeholder of the TitleOnly layout-slide.
IShape titleShape = slide.Shapes[0] as IShape;
titleShape.TextBody.AddParagraph("Company History").HorizontalAlignment = HorizontalAlignmentType.Center;

//Adds description content to the slide by adding a new TextBox.
IShape descriptionShape = slide.AddTextBox(53.22, 141.73, 874.19, 77.70);
descriptionShape.TextBody.Text = "IMN Solutions PVT LTD is the software company, established in 1987, by George Milton. The company has been listed as the trusted partner for many high-profile organizations since 1988 and got awards for quality products from reputed organizations.";

//Adds bullet points to the slide.
IShape bulletPointsShape = slide.AddTextBox(53.22, 270, 437.90, 116.32);
//Adds a paragraph for a bullet point.
IParagraph firstPara = bulletPointsShape.TextBody.AddParagraph("The company acquired the MCY corporation for 20 billion dollars and became the top revenue maker for the year 2015.");
//Formats how the bullets should be displayed.
firstPara.ListFormat.Type = ListType.Bulleted;
firstPara.LeftIndent = 35;
firstPara.FirstLineIndent = -35;
//Adds another paragraph for the next bullet point.
IParagraph secondPara = bulletPointsShape.TextBody.AddParagraph("The company is participating in top open source projects in automation industry.");
//Formats how the bullets should be displayed.
secondPara.ListFormat.Type = ListType.Bulleted;
secondPara.LeftIndent = 35;
secondPara.FirstLineIndent = -35;

Assembly assembly = typeof(MainPage).GetTypeInfo().Assembly;
string resourcePath = "CreatePowerPoint.Resources.Presentation.Image.png";
//Gets a picture as stream.
Stream pictureStream = assembly.GetManifestResourceStream(resourcePath);
//Adds the picture to a slide by specifying its size and position.
slide.Shapes.AddPicture(pictureStream, 499.79, 238.59, 364.54, 192.16);

//Adds an auto-shape to the slide.
IShape stampShape = slide.Shapes.AddShape(AutoShapeType.Explosion1, 48.93, 430.71, 104.13, 80.54);
//Formats the auto-shape color by setting the fill type and text.
stampShape.Fill.FillType = FillType.None;
stampShape.TextBody.AddParagraph("IMN").HorizontalAlignment = HorizontalAlignmentType.Center;

//Saves the presentation to the memory stream.
using MemoryStream stream = new();
pptxDoc.Save(stream);
stream.Position = 0;
//Saves the memory stream as file.
SaveService saveService = new();
saveService.SaveAndView("Sample.pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation", stream);
{% endhighlight %}

{% endtabs %}

Step 6: Build the project.

Click the **Build** button in the toolbar or press <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>B</kbd> to build the project.

Step 7: Run the project.

Select the target platform in the Run configuration dropdown, then click Run.

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PowerPoint-Examples/tree/master/Getting-started/.NET-MAUI/Create-PowerPoint-presentation).

By executing the program, you will get the **PowerPoint slide** as follows.

![MAUI output PowerPoint slide](Workingwith-MAUI/GettingStartedSample.png)

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PowerPoint-Examples/tree/master/Getting-started/.NET-MAUI/Read-and-edit-presentation).

## Helper files for .NET MAUI

Download the helper files from this [link](https://www.syncfusion.com/downloads/support/directtrac/general/ze/HelperFiles_Presentation-1440845842.zip) and add them into the mentioned project. These helper files allow you to save the stream as a physical file and open the file for viewing.

<table>
  <tr>
  <td>
    <b>Folder Name</b>
  </td>
  <td>
    <b>File Name</b>
  </td>
  <td>
    <b>Summary</b>
  </td>
  </tr>
  <tr>
  <td>
    .NET MAUI Project
  </td>
  <td>
    SaveService.cs
  </td>
  <td>Represent the base class for save operation.
  </td>
  </tr>
  <tr>
  <td>
    Windows
  </td>
  <td>
    SaveWindows.cs
  </td>
  <td>Save implementation for Windows.
  </td>
  </tr>
  <tr>
  <td>
    Android
  </td>
  <td>
    SaveAndroid.cs
  </td>
  <td>Save implementation for Android device.
  </td>
  </tr>
  <tr>
  <td>
    Mac Catalyst
  </td>
  <td>
    SaveMac.cs
  </td>
  <td>Save implementation for Mac Catalyst device.
  </td>
  </tr>
  <tr>
  <td rowspan="2">
    iOS
  </td>
  <td>
    SaveIOS.cs
  </td>
  <td>
    Save implementation for iOS device.
  </td>
  </tr>
  <tr>
  <td>
    PreviewControllerDS.cs<br/>QLPreviewItemFileSystem.cs
  </td>
  <td>
    Helper classes for viewing the <b>PowerPoint file</b> in iOS device.
  </td>
  </tr>
</table>

{% endtabcontent %}

{% endtabcontents %}

## Read and edit a PowerPoint file in .NET MAUI

You can edit an existing PowerPoint file using this library. The below code snippet demonstrates accessing a shape from a slide and changing the text within it.

{% tabs %}

{% highlight c# tabtitle="C#" %}
//Opens an existing PowerPoint presentation.
Assembly assembly = typeof(MainPage).GetTypeInfo().Assembly;
//Opens an existing PowerPoint presentation.
using IPresentation pptxDoc = Presentation.Open(assembly.GetManifestResourceStream("Sample.pptx"));
//Gets the first slide from the PowerPoint presentation.
ISlide slide = pptxDoc.Slides[0];
//Gets the first shape of the slide.
IShape shape = slide.Shapes[0] as IShape;
//Modifies the text of the shape.
if (shape.TextBody.Text == "Company History")
    shape.TextBody.Text = "Company Profile";
//Saves the presentation to the memory stream.
using MemoryStream stream = new();
pptxDoc.Save(stream);
stream.Position = 0;
//Saves the memory stream as file.
SaveService saveService = new();
saveService.SaveAndView("Output.pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation", stream);
{% endhighlight %}

{% endtabs %}

Click [here](https://www.syncfusion.com/document-processing/powerpoint-framework/maui) to explore the rich set of Syncfusion<sup>&reg;</sup> PowerPoint Library (Presentation) features. 

An online sample link to [create a PowerPoint Presentation](https://document.syncfusion.com/demos/powerpoint/default#/tailwind) in ASP.NET Core.