docassemble - docassemble is a free, open-source expert system for guided interviews and document assembly.
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.
HotDocs - Template-driven, automated document & form assembly software
WPS Office - Would you need Office Word, Excel or PowerPoint for Home, business or School? WPS.com would give you right version for you.
XpressDox - XpressDox Desktop for Microsoft® Office Word is an affordable document assembly system.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.