Hi @Siti Jubaedah ,
There is no official tool to help you convert PPT to HTML5.
Try to test if this web will help you:
https://www.zamzar.com/convert/ppt-to-html5/
While Microsoft supports and encourages open-source software development, it does not provide technical support for the softwares from third parties, nor does it guarantee that the software will work as described.
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