Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

On a Mac OS X 2.6.5 in the finder I renamed a file from test2.xls to test2.xlsTEMP:

alt text

However, at the UNIX command line, I see that the REAL name of the file is test2.xlsTEMP.xls:

alt text

How can I get Finder to show me the real names of my files?

share|improve this question
up vote 2 down vote accepted

Check Finder (menu) » Preferences » Advanced » Show all filename extensions.

alt text

Alternatively, select the file and press Cmd-I, or open the context menu and select Get Info. In this window, you see (and can edit) the full filename, as well as specify whether to display the individual file's extension:

alt text

Also worth mentioning is that your renaming issue only appears for extensions that aren't recognized by Finder:

alt text

(I know, not useful. Sue me!)

Just don't abuse the file extension for tagging files like this.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.