So I guess 2 hours wasn't enough for me to find such a simple and irrelevant-looking problem. Thank you for your time. Great library btw, Thank you very much.

@jan_blaha thanks for your reply. My question is: Isn't an Excel file just a collection of some XMLs? Well I change my table1.xml to something Excel would create itself. Then where's the problem coming from? Which other file should I look into to make it work? (I compared every file in the corrupted and refined excel files but found nothing. The only difference seemed to be in the Table1.xml and SharedString.xml but fixing them didn't work.)
If you please give me a clue where my problem lies at, I think I would be able to work it out. Thank you for your great library and support.

Hi I'm trying to make a dynamic table in jsreport XLSX recipe using handlebars. https://playground.jsreport.net/w/bamdad-b/JBtX70vq
As you can see the file is corrupted when I try to add the third column to the table. The result is the same in the studio and my .NET application.
The web version of Excel is capable of repairing the file but when using Microsoft Office Excel on windows, it keeps asking to repair the file each time I open it and claims that there was a problem in "\xl\tables\table1.xml" but it doesn't change anything in that file and prompts me to repair the file again when I open it.