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.
Side Project Stack - Get the best tech stack to make your next Indie Maker App
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
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
The New iPad Air - Apple's refreshed iPad Air, thinner and with pencil support