By using Aspose.Total for .NET you can convert POTX file to XLTX within any .NET, C#, ASP.NET and VB.NET application in two simple steps. Firstly, by using Aspose.Slides for .NET , you can export POTX to HTML. After that, by using Aspose.Cells for .NET Spreadsheet Programming API, you can convert HTML to XLTX.
How to Convert POTX to XLTX via C#
POTX File Conversion in C#
For POTX file to XLTX 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 .
Convert Protected POTX to XLTX via C#
While converting POTX file to XLTX, if your input POTX document is password protected you cannot convert it to XLTX 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 POTX to XLTX with Watermark via C#
While converting POTX file to XLTX, you can also add watermark to your output XLTX 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 XLTX with Watermark.