How to Delete Unnecessary Cells in Excel

1. Select the column immediately to the right of your data.
2. Hold down "Ctrl" + "Shift" and press the right arrow key to select all the columns to the right of your data.
3. Right-click on any of the selected column headers and choose "Delete" from the context menu.
4. In the "Delete" dialog box, select "Entire column" and click "OK".
5. Adjust your print area to only include the columns you need by selecting the columns you want to print, going to the "Page Layout" tab, clicking on "Print Area", and choosing "Set Print Area".

That's it! You should now have a much more manageable spreadsheet without all those unnecessary columns.