Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
DBeaver - DBeaver - Universal Database Manager and SQL Client.
Big Huge Labs Writer - Writer is a free online distraction free writing environment provided by Big Huge Labs.
DataGrip - Tool for SQL and databases
SoftMaker Office - SoftMaker Office is one of the most powerful and reliable office suite that is fully compatible with the MS Office Suite.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.