In this Free Open Office Calc tutorial, I suggest youlearn how to create and format a simple table.
Thanks to this online video course, we will see :

how to create rows and columns, to insert or delete them, but also to format it using the tools offered by Calc, Then we will see how to insert a title and finally, how to save our work.

I remain available in the mutual aid lounge to answer any questions you may have about this Calc course.
Good tutorial