If you have any difficulty to find the option to add borders to your cells, take note that the button for this purpose takes the form of a white (blank) square.
- It's next to the "background color" button.
- Clicking on it will pop up a small interface with all the border options:
This document, titled « Open Office Calc - Adding borders to the cells », is available under the Creative Commons
license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM