Hi Urva,

For PPTX and DOCX report, you have to use a different template document. It's how you create DOCX/PPTX reports. The built-in report files are only here for demo purposes. So you can use whatever word or powerpoint file you want as a base for creating the reports, so feel free to pick one that fits your company visual theme.

For Powerpoint export of Dashboards however, there's currently no way to use a specific PPTX template. Using a different template might be tricky to implement since we're using pure client code (Javascript) to generate the exported PPTX, but feel free to submit an ER/Idea if you'd like the template PPTX of Dashboard export to be configurable.