Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
Dropbox - Online Sync and File Sharing
SoftMaker Office - SoftMaker Office is one of the most powerful and reliable office suite that is fully compatible with the MS Office Suite.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
Google Drive - Access and sync your files anywhere