Here you will find the solution to unlock a protected cell

1. Unprotect the Sheet

Do a right on the sheet on the bottom of the window on the corresponding sheet in which you would like to unlock a cell.

2. Unprotect the cell

Select the cell you would like to unprotect.

Click the keys "CMD" + "1" or do a right click

In the Window, select the tab "Protection" and uncheck the Box "Locked" and close the window with "ok".

3. Protect the sheet

Do a right click on the sheet at the bottom of the window and select "Protect Sheet".

In the window:

• Don't set any password

• select the checkboxes exactly like in the screenshot below

• confirm it "ok"

✅ Done