[Zope] Data.fs file growing

Hello All, My data.fs is growing larger then I expected, currently it's at 1.8 gig. Is there a way I can shrink or clean it out. I think I now why my file is increasing this fast. I have a ftp batch script to upload documents to the site. The documents are always at my client server, meaning they are uploaded every time the batch script is run. Is there a fix to this? Thank you in advance. TP