# How can I insert a space into the filename?

**URL:** <https://community.mp3tag.de/t/how-can-i-insert-a-space-into-the-filename/17086>\
**Category:** Support\
**Created:** [July 24, 2015, 3:52am UTC](https://community.mp3tag.de/t/how-can-i-insert-a-space-into-the-filename/17086 "2015-07-24T03:52:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![janesbootydoe](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/j/85e7bf/32.png) [@janesbootydoe](https://community.mp3tag.de/u/janesbootydoe)\
**Post date:** [July 24, 2015, 3:52am UTC](https://community.mp3tag.de/t/how-can-i-insert-a-space-into-the-filename/17086/1 "2015-07-24T03:52:58Z")

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I've read the FAQ but am not sure how to do this. I want to insert a space after the third character of every filename.

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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:** [July 24, 2015, 3:56am UTC](https://community.mp3tag.de/t/how-can-i-insert-a-space-into-the-filename/17086/2 "2015-07-24T03:56:45Z")

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It may be easier to recreate the filename from the tags with the function Convert\>Tag-Filename.

For the initial problem:  
Create an action of the type "Replace with regular expression" for _FILENAME  
Search string: ^(...)  
Replace string: $1_  
(as the blank behind the $1 would not show, I used \_ - please use the space character instead).

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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, 12:25pm UTC](https://community.mp3tag.de/t/how-can-i-insert-a-space-into-the-filename/17086/3 "2026-02-09T12:25:47Z")

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Closed on February 9, 2026, 12:25pm UTC