Alt - F4 is the main one, though you can also use Alt - F - X.
Alt-F4 or Alt-F-X.
You can click on the save icon. You can press the Ctrl - S key combination. You can press the Shift - F12 key combination. If you try and close the file or Excel itself, it will ask if you want to save it and you can choose yes.
you can get help in the Microsoft excel itself by pressing F1 key.
Press the key combination Alt - H - O and it will open if it is in the version if Excel you have.
Ctrl
In some cases it is, e.g. Microsoft Excel graphs.
Pressing the F4 key will repeat the last command.
Create a shortcut key by right clicking on the excel icon on the desktop or from the folder menu and click properties. Define your shortcut key. Can do from the keyboard once this is done.
Ctrl-D
Ctrl - End.
Ctrl - Shift - L can turn filters on and off.
With Excel on a Mac a line break is entered by adding the Command (cmd) key to the other two - cmd alt enter. The Command key may be replaced by the Control key (ctrl) in some versions of Excel - It's a Microsoft thing.
Press the Tab key. Press the Enter key. Press any of the arrow keys.