1. To hide a column, select the column you want to hide and press Ctrl + 0 (zero).
2. To unhide a column, select the column to the right of the hidden column and press Ctrl + Shift + 0.
3. To hide multiple columns, select the columns you want to hide and press Ctrl + 0.
4. To unhide multiple columns, select the column to the right of the first hidden column and press Ctrl + Shift + 0.
5. To hide a row, select the row you want to hide and press Ctrl + 9.
6. To unhide a row, select the row below the hidden row and press Ctrl + Shift + 9.
7. To hide multiple rows, select the rows you want to hide and press Ctrl + 9.
8. To unhide multiple rows, select the row below the first hidden row and press Ctrl + Shift + 9.
9. To hide all columns to the left of the active cell, press Ctrl + Shift + Left Arrow.
10. To hide all columns to the right of the active cell, press Ctrl + Shift + Right Arrow.
11. To hide all rows above the active cell, press Ctrl + Shift + Up Arrow.
12. To hide all rows below the active cell, press Ctrl + Shift + Down Arrow.
13. To unhide all columns, select any cell in the rightmost column and press Ctrl + Shift + Left Arrow.
14. To unhide all rows, select any cell in the bottom row and press Ctrl + Shift + Up Arrow.
15. To quickly hide all columns or rows containing data, select any cell within the data range and press Ctrl + Shift + 8.
16. To quickly unhide all columns or rows containing data, select any cell outside the data range and press Ctrl + Shift + 8.
17. To hide all empty columns, select any cell in the rightmost column and press Ctrl + Shift + 9.
18. To hide all empty rows, select any cell in the bottom row and press Ctrl + Shift + 9.
19. To unhide all empty columns, select any cell in the leftmost column and press Ctrl + Shift + 9.
20. To unhide all empty rows, select any cell in the top row and press Ctrl + Shift + 9.
21. To quickly hide all columns or rows with no data, select any cell within the data range and press Ctrl + Shift + 0.
22. To quickly unhide all columns or rows with no data, select any cell outside the data range and press Ctrl + Shift + 0.
23. To hide all columns or rows with data, select any cell within the data range and press Ctrl + Shift + 9.
24. To unhide all columns or rows with data, select any cell outside the data range and press Ctrl + Shift + 9.
25. To quickly hide all columns or rows, select any cell and press Ctrl + Shift + 8.