SoftMaker Office 2021 is an office suite, it includes

 * TextMaker 2021, a word processor
 * PlanMaker 2021, a spreadsheet program
 * Presentations 2021, a presentation software

The main feature of SoftMaker Office 2021 is the extremely high
compatibility with the MS Office file formats.

SoftMaker Office 2021 is a commercial program.  It is available in
Standard and Pro editions, and also as a free 30 days trial.
