I've read lots of posts already, and I've tried what I've found (ie creating my .gitignore file with the SINGLE LINE *.csv within the root directory (ie the same directory containing the .git folder (that's the root directory, right?), then running git rm -r --cached . followed by git add . followed by git commit -m "so tired of trying to ignore all csv files" followed by git push origin master.  And yet, I still get many errors, all looking like:
remote: error: File zz_prep_stuff/z_csv_table_data/blah.csv is 485.89 MB; this exceeds GitHub's file size limit of 100.00 MB
So, clearly, something is wrong!  Again, my .gitignore file contains only the following code:
*.csv
Please advise! Where am I going wrong? How do I ignore ALL csv files in my project? Thank you
 
    