Question

to activate the extend selection mode in a worksheet which key is used​

Answer 1

Explanation:

Microsoft Word Select text with the Extend Selection keyboard shortcut

Move the cursor to the beginning of the text you want to select.

Press [F8]. (This highlights the EXT button in the status bar.)

Use the keyboard or the mouse to move the cursor to the end of the selection.

Press [Esc].

Answer 2

Answer:

F8

your answer is F12 key