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.
Zeplin - Collaboration app for UI designers & frontend developers
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
Abstract - A secure, version-controlled hub for your design files
Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
Mightytext - Send & Receive SMS Text Messages from your computer. Sync'd with your Android #