Convert POWERPOINT to XLSX via C# or Online App

.NET API for POWERPOINT to XLSX conversion without using Microsoft^® Excel or PowerPoint

Aspose.Total for .NET is a comprehensive suite of .NET components that enables developers to easily convert POWERPOINT files to XLSX within any .NET, C#, ASP.NET and VB.NET application. This powerful suite of components provides a simple and efficient way to convert POWERPOINT files to XLSX in just two steps.

The first step is to use Aspose.Slides for .NET to export the POWERPOINT file to HTML. This component provides a wide range of features and options to help developers easily convert POWERPOINT files to HTML. It supports a variety of formats, including PPT, PPTX, PPS, PPSX, POT, POTX, and more. It also provides a range of options to customize the output HTML, such as setting the page size, background color, font size, and more.

The second step is to use Aspose.Cells for .NET to convert the HTML to XLSX. This powerful Spreadsheet Programming API provides a wide range of features and options to help developers easily convert HTML to XLSX. It supports a variety of formats, including XLS, XLSX, XLSM, XLSB, CSV, and more. It also provides a range of options to customize the output XLSX, such as setting the page size, background color, font size, and more.

By using Aspose.Total for .NET, developers can easily convert POWERPOINT files to XLSX within any .NET, C#, ASP.NET and VB.NET application. This powerful suite of components provides a simple and efficient way to convert POWERPOINT files to XLSX in just two steps.

How to Convert POWERPOINT to XLSX via C#

Open POWERPOINT file using Presentation class
Export POWERPOINT as HTML by using Save method
Load HTML document by using Workbook class
Save the document to XLSX using Save method

POWERPOINT File Conversion in C#

For POWERPOINT file to XLSX Conversion in C#, please install the API from the command line as nuget install Aspose.Total or via Package Manager Console of Visual Studio.

Alternatively, get the offline MSI installer or DLLs in a ZIP file from downloads .

Free Online Converter for POWERPOINT to XLSX

Convert Protected POWERPOINT to XLSX via C#

While converting POWERPOINT file to XLSX, if your input POWERPOINT document is password protected you cannot convert it to XLSX without decrypting the document. When your document is password protected, it means it enforces certain restrictions on the presentation. To remove the restrictions, the password has to be entered. A password-protected presentation is considered a locked presentation. The API allows you to open the encrypted document by passing the correct password in a LoadOptions object.

Convert POWERPOINT to XLSX with Watermark via C#

While converting POWERPOINT file to XLSX, you can also add watermark to your output XLSX file format. In order to add a watermark, you can create a new Workbook object and open the converted HTML document, select Worksheet via its index, create a Shape and use its AddTextEffect function. After that you can save your HTML document as XLSX with Watermark.

FAQ

How can I convert POWERPOINT to XLSX Online?
Online App for POWERPOINT conversion is integrated above. To initiate the POWERPOINT to XLSX conversion process, simply add the POWERPOINT file by either dragging and dropping it into the designated area or clicking on it to import the document. Next, click on the "Convert" button. Once the POWERPOINT to XLSX conversion has been completed, you can download the converted file. With just a single click, you will receive your output XLSX files.
How long does it take to convert POWERPOINT?
The speed of this online converter is largely dependent on the size of the POWERPOINT file. If the POWERPOINT file is small in size, the conversion to XLSX can be completed within a few seconds. Additionally, if you have integrated the conversion code within a .NET application, the speed of the conversion process will depend on how well you have optimized your application for this purpose.
Is it safe to convert POWERPOINT to XLSX using free Aspose.Total converter?
Of course! As soon as the POWERPOINT to XLSX conversion is complete, you will have instant access to the download link for the converted XLSX files. Please note that we automatically delete any uploaded files after 24 hours, and the download links will no longer be active after this time period. Your files are completely secure and private, as no one else has access to them. The file conversion process, including POWERPOINT conversion, is absolutely safe to use. We offer this free app primarily for testing purposes so that you can evaluate the results before integrating the code.
What browser should I use to convert POWERPOINT?
This online conversion tool is compatible with any modern browser, such as Google Chrome, Firefox, Opera, or Safari. However, if you are developing a desktop application, the Aspose.Total POWERPOINT Conversion API is a reliable option for smooth integration.