# How do I change the filename number without changing its whole name?

**URL:** <https://community.mp3tag.de/t/how-do-i-change-the-filename-number-without-changing-its-whole-name/47390>\
**Category:** Support\
**Created:** [December 31, 2019, 9:58pm UTC](https://community.mp3tag.de/t/how-do-i-change-the-filename-number-without-changing-its-whole-name/47390 "2019-12-31T21:58:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![joaoph](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/j/7ba0ec/32.png) [@joaoph](https://community.mp3tag.de/u/joaoph)\
**Post date:** [December 31, 2019, 9:58pm UTC](https://community.mp3tag.de/t/how-do-i-change-the-filename-number-without-changing-its-whole-name/47390/1 "2019-12-31T21:58:10Z")

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E.g.:

_13 - Jesu, joy of man's desiring_  
_14 - High and lifted up_

I'd like the names to be

_1 - Jesu, joy of man's desiring_  
_2 - High and lifted up_

I have about 200 files and I can't go one by one. Please, help me.

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**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:** [December 31, 2019, 10:29pm UTC](https://community.mp3tag.de/t/how-do-i-change-the-filename-number-without-changing-its-whole-name/47390/2 "2019-12-31T22:29:46Z")

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Try the function Convert\>Tag-Tag for \_FILENAME (you have to type in the field name)  
Format string: `$num(%_counter%,1) - $regexp(%_filename%,\d+ -,)`

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**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, 12:28pm UTC](https://community.mp3tag.de/t/how-do-i-change-the-filename-number-without-changing-its-whole-name/47390/3 "2026-02-09T12:28:22Z")

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