WPS Office - Would you need Office Word, Excel or PowerPoint for Home, business or School? WPS.com would give you right version for you.
MadCap Flare - Documentation for Any Audience, Language or Format
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
Yumpu.com - The UK’s favourite all-inclusive online magazine package
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.
Readymag - Readymag is a design toolkit that helps create immersive digital experiences without developers in days, not weeks.