“My spreadsheet must be haunted” is a great opening line to an Excel question sent in just before Halloween. You have 1510 rows in Excel. You try to Delete Sheet Rows from A1511 to A1048576, but the rows keep coming back.
How can you delete all of the whitespace at the bottom of Excel?
How can you delete unused rows at the bottom of Excel?
How can you delete unused columns to the right of your Excel data?
The solution is to hide the extra rows and columns.