A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
The entire row including the row numbers of Hidden rows do not display so the numbers may run, e.g., 1,2,3,6,8,10, etc. if rows 4,5,7 & 9 are Hidden. Additionally there may be a heavier dividing line between the row numbers preceding & following the Hidden rows.
The area marked with the red bracket illustrates both indicators based on the above example:
I don't understand what you're having trouble with... there only are 2 steps involved:
- Command+A to select the entire sheet, then
- go to Format> Row in the main menu & select the Unhide command.
This will Unhide [not delete] all Hidden rows.
NOTE: I made absolutely no mention of using the Delete Row command. If you do any content in the Hidden rows will be deleted from the sheet.