We have talked a lot de OpenOffice, LibreOffice and others like Calligra Suite, but there are many other office suites for GNU / Linux that are not talked about so much and can be a good alternative if the traditional ones do not satisfy you too much for one reason or another, although personally I think that LibreOffice and Calligra can be enough for almost any user, something else is the tastes of each other ...
One of these alternatives is FreeOffice which is presented as a complete and robust suite created by SoftMaker. FreeOffice can present similar features to LibreOffice and puts a strong emphasis on compatibility and performance with native Microsoft Office formats or documents, which can be opened, saved and edited with SoftMaker FreeOffice without problems.
For those who don't know SoftMaker, it is a German company that offers open source solutions such as FreeOffice that is available for various platforms (Windows, GNU / Linux and Android), even if it is commercial (also in free versions, both fast and stable). The latest version of this pack of programs that you can find is FreeOffice 2016, which is distributed under the Mozilla public license.
SoftMaker FreeOffice can be tried for 30 days for free and then you must pay a payment of $ 69.95 to have it complete. A lower price than Microsoft Offie, but similar to what Microsoft Office 365 costs in its Home and Student editions, that is, the most basic editions of the Redmond suite. Clarify that the free and open source version are very similar to the commercial and closed version of FreeOffice. Therefore, sometimes it is not worth opting for the paid version