Open.
open
open
Undo last step
Ctrl+O means hold down the Control key and press the O key.
ctrl an plus zoom the screen in an ctrl minus dezooms it
ctrl shift - reverses the effect of ctrl shift =
ctrl plus r reloads a webpage.
Ctrl + 1
It makes what is on the screen bigger. Another way to do it is ctrl + plus or ctrl + scroll wheel up/down.
It increases the magnification of the screen. CTRL plus _ does the reverse.
CTRL+O is typically used as an accelerator (or shortcut keystroke) for the Open File command.
Ctrl plus J is used to justify text or a paragraph.