A few years back I included this version of Softmaker's FreeOffice in my spins of Slacko5.7
Its small and powerful, doing Presentations, WordProcessor, and SpreadSheets. One nit here is to view hidden files and move the .softmaker file to root BEFORE starting the program.
This version is PRIOR to Windows10, so no coding for Win10 is in it.
The link will point you to the details... just click on "Show All". The Suite and manuals (English) are separate tgz downloads.
Regards
8Geee