For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Mitchell 1 - Mitchell 1 is a leader in providing automotive repair software and repair shop solutions that simplify everyday tasks for automotive professionals.
Dropbox - Online Sync and File Sharing
Fullbay - Fullbay is built for HD repair shops & fleet managers. It improves tech efficiency, bills parts, and makes invoicing a snap.
Google Drive - Access and sync your files anywhere
Tekmetric - Tekmetric is an auto-repair shop management software that helps workers to inspect vehicles digitally, get repair orders, and maintain communications with their customers.
Mega - Secure File Storage and collaboration