Compressed zip from document library

[iwkse]

Hi,
I've just noticed when you use this feature from the document library the created zip file stays on the file system and there's no way (I didn't find it) to catch and remove it. I discover that because I noticed a strange grow of the backup data and I noticed such feature was used, passing from a 7GB to a 15GB backup.I think such temporary files should be deleted and not saved on the filesystem. Anyone already dealt with it?
Regards,
S.

[iwkse]

I've tried to use the JS console to delete it and it can't be found. In the database it is just listed as:

store://2015/6/4/10/29/92bc9c17-9619-4df4-bbad-5b678ad85d14.bin 8ad85d14.bin

A help would be appreciated,

Regards
S.