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.
Office for Tablets - Get Microsoft Office on your Android tablet
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
ONLYOFFICE Documents for Android - A complete suite for working with office docs on-the-go
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
Zoho Office Suite - Zoho's new office suite of apps.