Displaying grid lines

I’ve tried View / Grid & Helplines / display grid (after highlighting vells) but it doesn’t work.

Sorry, but I just don’t know how to respond to the previous answer.

Sorry folks! I haven’t made my question correctly. I wanted the gridlines around a certain area bold

I have a sight problem, & didn’t notice that faint gridlines had appeared, but over the whole spreadsheet.

Please use comment or edit original question for this type of information. Answers are just that. An answer to the original question.

Ahh! You want to add a border to the cell or cells! Format → Cells… → Border → make your choices. But this will not put a border around just an area, but around each individual cell in the area.

It will put a border around just the selected area, if one selects only the outer borders in the Line Arrangement.

Thanks, Mike. I didn’t know that. Nice to know.