There is a new tool available for Sparkers: FreeOffice
What is FreeOffice?
SoftMaker FreeOffice is a complete office suite. SoftMaker FreeOffice is powerful and fast, and reads and writes Microsoft Office documents flawlessly. It comes with the TextMaker word processor, the spreadsheet program PlanMaker and the presentations software Presentations…
…With FreeOffice 2018 you can not only open, but also save documents in the Microsoft file formats DOCX, XLSX and PPTX. Share files directly with Microsoft Office users, without having to export them first.
sudo apt update
sudo apt install softmaker-freeoffice-2018
or via Sparky APTus-> Office tab.
The FreeOffice project page: www.freeoffice.com
It’s completely free for both personal and commercial use.