I am receiving an error saying:
Microsoft Excel can't insert new cells because it would push non empty cells off the end of the worksheet.
This happens when I try to insert a new row of data. I need to keep all of the data on the sheet I already have. I only have 56 rows, so I think I should be able to add more...
Excel has a limited number of rows and columns (which varies with version).
To find your last cell with data in it, click on any cell and then press Ctrl+End.
This will then take you to the furthest from A1
which has content. You'll need to remove what is there to add extra rows.