# output file name **URL:** \ **Category:** Support\ **Created:** [October 13, 2016, 12:17pm UTC](https://community.mp3tag.de/t/output-file-name/18327 "2016-10-13T12:17:50Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![ronaldl99](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/r/43a26b/32.png) [@ronaldl99](https://community.mp3tag.de/u/ronaldl99)\ **Post date:** [October 13, 2016, 12:17pm UTC](https://community.mp3tag.de/t/output-file-name/18327/1 "2016-10-13T12:17:50Z")
New user with a question: I have 13 files and I want to rename them 14.mp3 to 27.mp3. How do I do this. Thanks furley ---
**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\ **Post date:** [October 13, 2016, 12:56pm UTC](https://community.mp3tag.de/t/output-file-name/18327/2 "2016-10-13T12:56:31Z")
Where do you find this number? If it is in the field TRACK, use the function Convert\>Tag-Filename Format-String: %track% ---
**Author:** ![Rijkstra](https://community.mp3tag.de/user_avatar/community.mp3tag.de/rijkstra/32/22_2.png) [@Rijkstra](https://community.mp3tag.de/u/Rijkstra)\ **Post date:** [October 13, 2016, 3:06pm UTC](https://community.mp3tag.de/t/output-file-name/18327/3 "2016-10-13T15:06:57Z")
> [@ohrenkino](#): > > Where do you find this number? If it is in the field TRACK, ... If it is not, and you can sort the files the way you want them, you can fill in the track numbers with the autonumbering wizard. (Ctrl+K) ---
**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\ **Post date:** [February 9, 2026, 12:26pm UTC](https://community.mp3tag.de/t/output-file-name/18327/4 "2026-02-09T12:26:28Z")