Known as “FP Spreadsheet”, it is used to import/export spreadsheets from/to ODT, XLS, XLSX (Open XML) formats.
You can use it in Lazarus/FPC and also in Delphi Community Edition.
More information at:
https://wiki.lazarus.freepascal.org/FPSpreadsheet
Watch the video below where you can find examples of how to use such a component:
If you are looking for examples like this or other components, please read this other article titled learning by example, in it you will find many examples.