For all of your document creation and data processing requirements, LibreOffice is the free, feature-rich Open Source personal productivity suite for Windows, Macintosh, and Linux.
Libre Office Programs
Libre Office Writer: You may use it to create anything, from a hastily written letter to a whole book complete with tables of contents, embedded graphics, and diagrams.
Calc: It helps you make difficult selections while you are assessing your options by taming your statistics.
Impress: The quickest and simplest method to make powerful multimedia presentations is using Impress.
Draw: You may create diagrams and sketches from scratch with Draw. Why not attempt something straightforward using box and line diagrams as a picture is worth a thousand words?
Base: The LibreOffice suite’s database front-end is called Base.
Math: It is a straightforward equation editor that enables you to easily layout and show your scientific, mathematical, etc. methods.