It saves the file.
CTRL C to copy
keyboard
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 plus J is used to justify text or a paragraph.
It means that you press the Ctrl key and holding it down, press the F1 key to perform a certain function on a personal computer and the function you perform depends on the context and the program running etc.
Underline
superscript
Magnify the information displayed on the screen.
It does nothing. Pressing CTRL and the + sign zooms in your screen though
It reloads the page. Hope this helps! :)
Ctrl and the plus key.