If you need to date-stamp or time-stamp your worksheet, Excel provides two shortcut keys that do this for you:

When you need as much space as possible on screen to view a workbook, you can collapse (or minimize) the Ribbon to only its labels by double-clicking the label of the tab you're currently using.

Suppose you'd like to add a couple more commands to the Quick Access toolbar. Perhaps you miss the menu in earlier versions of Excel that let you quickly switch between open Excel windows. Also, say you're a big fan of AutoSum. You can add the AutoSum button to the Quick Access toolbar, so you can quickly create and use AutoSum entries.

If you assigned a key combination to a macro when you recorded it, you can run the macro by pressing that key combination. If not, you can subsequently assign the macro to the menu item.

Excel propose easy and very fast way to create a chart by using shortcut keys.

Saving your document in the same location with the same name is easy.

The Open dialog box, is your key to finding and retrieving Excel workbooks.

Sometimes it is handy to view (and print) the formulas in all the cells in a spreadsheet with out having to manually enter each cell.

If you need to select all objects embedded into the worksheet, e.g. select all charts to adjust their size, press Ctrl+G and click the Special button or use Ctrl to select objects individually.

If you have lengthy text in a cell, you can force Excel to display it in multiple lines within the cell.