Different operating systems and different applications have different interpretations of keys and key combinations, but a common interpretation for the CTRL-END key combination is "move to the bottom end of the page."
goes from beginning to end.
It brings you to the end of the document.
It saves the file.
That's the shortcut for copy. The shortcut for paste is Ctrl V.
Ctrl+End is a typical shortcut to the end of a document
The action assigned to shortcut keys can be different in different applications. In the case of Microsoft Excel, Ctrl+1 is a useful shortcut to the format dialog, where you can assign cell formats, borders, etc.
The keyboard shortcut notation ctrl plus esc means you press the Control key concurrently with the Escape key. On a Windows PC, the Ctrl + Esc shortcut produces the Start Menu.
ctrl+k
That depends on the application. Commonly it is the F5 key, like in Word and Excel. Ctrl-G can be used as the shortcut.
The keyboard shortcut function control-w or ctrl-w closes the window of the program you're in. It's the opposite of ctrl-n, which opens a new window.
ctrl+B
There are many keyboard shortcuts, some of them are ctrl + c, alt + f, alt + e, f1, ctrl + a, ctrl + x, shift + del, Ctrl + Ins, Ctrl + V, Shift + Ins, Home, Ctrl + Home, End, Ctrl + End. There are also Shift + Home, Shift + End, Ctrl + Left arrow, Ctrl + Right arrow, Ctrl + A, Ctrl + B, Ctrl + C, Ctrl + F, Ctrl + Z, Ctrl + U, Ctrl + R, Ctrl + E, Ctrl + L, Ctrl + Y, Ctrl + X and Ctrl + R.
Ctrl+C is a keyboard shortcut for 'Copy'. Ctrl+V is the shortcut for 'Paste'. Ctrl+X does 'Cut', and Ctrl+Z does 'Undo'. Alt+Tab switches between windows.
Ctrl-xCtrl+X