Microsoft Office - From desktop to web for Macs and PCs, Office delivers the tools to get work done. View product information or sign in to Office 365.
Office 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
Quip - Quip is the modern productivity suite that simplifies your life and helps your team get work done faster.
Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
LibreOffice - Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!