TL;DR I'm looking for books/resource recommendations/guidance on figuring out how to go about automating the generation of PowerPoint decks/client reports.

I greatly appreciate any guidance from you all, please excuse any ignorance on my part--

I've recently tasked myself with trying to automate some client report generation for the agency I work for.

The two things I'd like to accomplish:

• Data gathering and automated analysis (through various 3rd party web APIs and tools)
• PowerPoint generation (through Open XML -- using the data gathered of course)

After a few weeks of research, I believe a .NET (C#) approach would be best for Open XML compatibility and back-end report generation -- should I take a different approach?

This is my extremely boiled-down process:

• Get info from user -- save to database (ASP.NET web form? Windows Forms App?)
• Use input to gather data from APIs -- save to database (would I be able to use the Python "Requests" module in .NET's IronPython? Or should I stick with some C# NuGet package?)
• Use info in database to generate .pptx file through Open XML

What parts of .NET do I need to read about to accomplish this? .NET seems like a massive heap of potential that I can't easily wrap my head around...