Hi nabilabolo,

Refer below links.

https://stackoverflow.com/questions/45752781/create-dynamic-table-in-powerpoint-using-openxml-with-c-sharp-and-asp-net

https://stackoverflow.com/questions/51257220/c-sharp-openxml-sdk-inserting-a-new-slide-from-slide-masters

http://microsoftdevelopernetworksamples.blogspot.com/2017/08/officehow-to-add-table-with_66.html

Hi,

Other than OpenXML, i have found Syncfusion Powerpoint. Are the syncfusion is a free or need license?

In OpenXML, any links that related to basic syntax of the code?

I already check this link but when i want to add the text, i don't know where to start.

https://docs.microsoft.com/en-us/office/open-xml/how-to-create-a-presentation-document-by-providing-a-file-name

Hi nabilabolo,

Syncfusion provides licenses and technical support at no charge to individual developers.

Use below code.

https://www.e-iceblue.com/Tutorials/Spire.Presentation/Program-Guide/How-to-Inert-Table-to-a-PPT-Slide.html

Hi,

I tried the Syncfusion library code, but it has watermark at the bottom of the slide saying that 

"Created with a trial version of Syncfusion Essential Presentation" so this is really free during trial only or all the time for the developers?

You need to purchase license in order to remove the watermark.