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.
Dropbox - Online Sync and File Sharing
Zoho Inventory - Zoho Inventory is an online inventory management software ideal for small businesses. Simplify your inventory and order operations. Try for FREE!
Google Drive - Access and sync your files anywhere
Fishbowl Inventory - Fishbowl offers manufacturing and warehouse management solutions for QuickBooks.
Mega - Secure File Storage and collaboration
SellerCloud - SellerCloud is a multi-channel inventory and order management system.