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.
Workday - Workday is an on‑demand financial management and human capital management software solution.
Dropbox - Online Sync and File Sharing
BambooHR - Personalized HR software for SMBs
Google Drive - Access and sync your files anywhere
Paychex Flex - Paychex Flex is a tool that reduces the complexity and risk of running your own payroll while ensuring greater accuracy with-up-to-date tax rates and regulatory information.
Mega - Secure File Storage and collaboration