how to reduce a huge archive file - deleting projects did not reduce the file

Hi there
I made a new archive on my external hard drive.
I entered some big movie source files and did cut and edit them in a project / event.
I exported some of the movies and deleted all the footage and projects.
Anyway the archive file Testmovie.fcpbundle in 20BG!
I added a new very small project with 10 images and a audio file of 6 MB.
Still the archive file is 20GB.

How can I reduce the file size and really delete the files that were in the project.
If I inspect the "packet size" and find only the data of the new and small project.

Thanks for your help!

Greg

greg2020 wrote: I made a new archive on my external hard drive.
I entered some big movie source files and did cut and edit them in a project / event.
I exported some of the movies and deleted all the footage and projects.
Anyway the archive file Testmovie.fcpbundle in 20BG!...

Disable background rendering in FCPX preferences, then select library in left sidebar and delete all render files with File>Delete Generated Library Files>Delete Render Files>All.

To do this in a more guided and safe fashion, get Final Cut Library Manager: www.arcticwhiteness.com/finalcutlibrarymanager/