Good evening edusegzy
Select the first column you do not need, in your example you want ten columns so click in the K column header to select the whole column, then press Ctrl + Shift + right arrow to select the rest of the sheet, it will be highlighted, then right click with the mouse and choose hide, all columns to the right of your tenth column will be hidden.For the rows do the same, select row eleven the Ctrl + Shift + down arrow, then right click and choose hide from drop down menu. You will be left with a ten by ten work sheet