Git and skip tracked files locally

Today I've learned something new on Git, which is BTW a huge tool there's no end to learning.

There's a file (Adobe Illustrator file) I need to edit in order to use it in my workflow.

I don't want to commit my edits since they are only meant to open it properly.

I can skip an already tracked file in my future commit with this command:

git update-index --skip-worktree FILEPATH

and if I want to check the ignored files, there is this way, found here:

git ls-files -v . | grep ^S

where git ls-files list all the git files, -v makes it verbose, grep ^S filter out the lines without S which means 'skip-worktree'.

Easy-peasy.