You can export all the files in a sprite folder, but is there some way to then reimport them again to replace the old sprites, after you've edited them in some external program, other than laboriously clicking "replace from file" on each and every sprite?
Replace sprite(s) from source...? ;)
Works fine for me anyway. (nod)
I don't have the original source files (some of them are on other people's computers).
oh... well you can see the original path they were imported from, maybe you can replicate the path on your computer and drop the files there (they of course need the exact file name too)?
I've wished before that it was possible to edit the source link to make this process easier. Otherwise I don't know any other way of doing it besides importing 1 by 1. :-\