# Can old "delta" files be deleted?

**URL:** <https://forums.realmacsoftware.com/t/can-old-delta-files-be-deleted/7521>\
**Category:** RapidWeaver Classic\
**Created:** [June 2, 2016, 11:26pm UTC](https://forums.realmacsoftware.com/t/can-old-delta-files-be-deleted/7521 "2016-06-02T23:26:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dprosell](https://avatars.discourse-cdn.com/v4/letter/d/3e96dc/32.png) [@dprosell](https://forums.realmacsoftware.com/u/dprosell)\
**Post date:** [June 2, 2016, 11:26pm UTC](https://forums.realmacsoftware.com/t/can-old-delta-files-be-deleted/7521/1 "2016-06-02T23:26:18Z")

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I have over 1GB of delta files and old versions of RW buried in my Library…Application Support-RapidWeaver folder. What are these files used for and can these be deleted?

Thanks