To fix look here: http://help.solidworks.com/2015/french/SolidWorks/pdmworks/t_Fixing_Rename_Errrors_WPDM.htm?id=91c5d7ed08d14a78aaf8c676bdfb4c28#Pg0&ProductType=&ProductName=
It must not be a real take-away composition, it smells like wild renaming before doing the zip.
You can try to remove the prefix with Lupas Rename for example (which allows you to do operations on file names in batches). I recommend that you work locally.