how to remove the editor's name in sdl studio 2014?

SDL Community wrote:

... in case you are receiving sdlxliff files with changes from multiple authors is to use this regex:

Search
(author=").*?(")

Replace
$1anon$2

So replace anon with whatever name you would like in the track changes. This will replace it in the Studio Editor, but it does not completely anoymise the SDLXLIFF because we also store the deleted/amended details with the username as well.

So you could also run this one:

Search
(?<=(created_by">|last_modified_by">))\w+

Replace
anon

I didn't run a really comprehensive check on this so back up your original first, but this seemed to work for me. I guess with a little ingenuity you could combine these two searches into one expression.