Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.

WriteNext - The writing application that boosts your writing. Increase focus and writing performance and reduce distractions by separating your creative writing from other activities. Let writing be the only activity you perform in the writing application.

Office Online - With Office Online you can view, edit, and share Word, Excel, PowerPoint, and OneNote files on your devices using a web browser, so you can work anywhere.

Writebox - Writebox is a simple and distraction-free text editor for Chrome and iPhone/iPad.

Caret - Better Markdown Editor for Mac / Windows / Linux

Calmly Writer - Distraction-free text editor for Mac, Windows, Linux and ChromeOS.