If you need to date-stamp or time-stamp your worksheet, Excel provides two shortcut keys that do this for you:
Often, data imported into an Excel worksheet contains excess spaces or strange (often unprintable) characters. There are two handy functions TRIM and CLEAN to cleanup such data.
Sometimes it is handy to view (and print) the formulas in all the cells in a spreadsheet without having to manually enter each cell.
If you have lengthy text in a cell, you can force Excel to display it in multiple lines within the cell.