How to Make the Cursor Stop Highlighting

1. Launch the Microsoft Excel project in which you wish to stop the cursor highlighting.
2. Select a single cell with your cursor. The cursor highlights a range of cells only if extended-selection mode is turned on.
3. Turn extended-selection mode off by pressing the 'F8' key.
4. Select a single cell with your cursor. The cursor will highlight only the individual cell. Extended-selection mode has been turned off.
5. Restart your system if the problem persists.