# Trimming ALL does not work like it does for FILENAME

**URL:** https://community.mp3tag.de/t/trimming-all-does-not-work-like-it-does-for-filename/46640
**Category:** Support
**Created:** [October 4, 2019, 5:07pm UTC](https://community.mp3tag.de/t/trimming-all-does-not-work-like-it-does-for-filename/46640 "2019-10-04T17:07:06Z")
**Posts on this page:** 1
**Showing post:** 2

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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: [October 4, 2019, 8:03pm UTC](https://community.mp3tag.de/t/trimming-all-does-not-work-like-it-does-for-filename/46640/2 "2019-10-04T20:03:49Z")

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I think that \_ALL refers to all TAG fields - and as the filename is a file property for the file system, it does not part of tags.

> [@Zerow](#):
>
> but how about removing multiple white spaces stacked together?

see the Howtos:

> [@Actions and batch-operations](https://community.mp3tag.de/t/actions-and-batch-operations/967/10):
>
> How to remove/trim leading and trailing spaces [Video tutorial for these actions](http://www.vimeo.com/7756545) Leading spaces: Action type: Replace with regular expressions Field: \_TAG Regular expression: ^\s+ Replace matches with: ^ matches the beginning of the string. Then \s+ searches for all whitespaces till a different char occurs. The whitespaces found will be replaced by nothing and, thus, deleted. Trailing spaces: Action type: Replace with regular expressions Field: \_TAG Regular expression: \s+$ Replace matc…

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