How do I create a readable diff of two spreadsheets using git diff?

Question

We have a lot of spreadsheets (xls) in our source code repository. These are usually edited with gnumeric or openoffice.org, and are mostly used to populate databases for u

Answer 1

I'm the co-author of a free, open-source Git extension:

https://github.com/ZoomerAnalytics/git-xltrail

It makes Git work with any Excel workbook file format without any workarounds.