Reading Poorly Structured Excel Files with Pandas - Practical Business Python

In this case, we can use openpyxl directly to parse the file and convert the data into a pandas DataFrame. The fact that the data is in an Excel table can make this process a little easier.
https://pbpython.com/pandas-excel-range.html

Thumbnails & Screenshots using FFmpeg - 3 Efficient Techniques - OTTVerse

ffmpeg -i inputvideo.mp4 -ss 00:00:03 -frames:v 1 foobar.jpeg

https://ottverse.com/thumbnails-screenshots-using-ffmpeg/