I got an issue with editing a xlsx. once edited excel find it corrupted and ask to repair it (which succeed) but i need to have valid xlsx as the excel is used inside a word chart (not relevant except i need a valid excel chart)
from what i can see it seems that excel expect a "xr3:uid" for every tableColumn but I'm not an expert in xlsx format sorry ...
I've joined the xlsx before edition after and after word repair it, the xml file that excel say has fixed, and a python code to reproduce the issue
Can you explain me what should I change to fix this if this is due to my code?