If you want to hide columns and rows from display in Excel, there is a nice keyboard shortcut for this. To hide a column, put the cursor in the column to be hidden in the spreadsheet or select multiple columns and then press Ctrl + 0. If you want to show the hidden columns again, press Ctrl + Shift + 0. To hide rows it's a similar thing, put the cursor in the row of the spreadsheet to be hidden or select multiple rows and then press Ctrl + 9. Again, pressing Ctrl + Shift + 9 will bring back the rows that are hidden in the spreadsheet.