A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hello Sarah5782
I am V. Arya, Independent Advisor, to work with you on this issue. You can go to last used column. Select next column which is unused, CTRL+SHIFT+Right arrow, right click and hide
Go to last used row, Select next row, CTRL+SHIFT+Down arrow, right click and hide
(To find last used row and cell, you can press CTRL+END)