# Not possible to change filename w/ extension via file view

**URL:** https://community.mp3tag.de/t/not-possible-to-change-filename-w-extension-via-file-view/12107
**Category:** Support
**Created:** [June 6, 2011, 7:09pm UTC](https://community.mp3tag.de/t/not-possible-to-change-filename-w-extension-via-file-view/12107 "2011-06-06T19:09:15Z")
**Posts on this page:** 1
**Showing post:** 4

<div class="post-metadata">

### Author: ![pone](https://community.mp3tag.de/user_avatar/community.mp3tag.de/pone/32/272_2.png) [@pone](https://community.mp3tag.de/u/pone)
#### Post date: [June 7, 2011, 7:58am UTC](https://community.mp3tag.de/t/not-possible-to-change-filename-w-extension-via-file-view/12107/4 "2011-06-07T07:58:54Z")

</div>

There is only one action in Mp3tag which can do this:

Action: Replace with regular expression  
Field: \_FILENAME  
Regular expression: .tmp$  
Replace matches with: .mp3

This example is a action I have stored which chages .tmp files into .mp3 files.

---

_[View the full topic](https://community.mp3tag.de/t/not-possible-to-change-filename-w-extension-via-file-view/12107)._