Ctrl+Up Arrow is one of the navigation shortcuts. When pressing the shortcut, the mouse cursor will move to the top edge of the current data range, or the very top of the worksheet if already on the bottom edge of the current data. Please see more shortcuts with arrows.
1. When the cursor is below the data range
Step 1: Click any cell below the current data range;
Step 2: Press the Key "Ctrl" from the keyboard, then click the key "Up Arrow".
The cursor will move to the bottom edge of the current data range.
2. When the cursor is anywhere in the data range
Step 1: Click any cell in the current data range;
Step 2: Press the Key "Ctrl" from the keyboard, then click the key "Up Arrow".
The cursor will move to the top edge of the current data range.
3. When the cursor is on the top edge of the data range
Step 1: Click any top cell in the current data range;
Step 2: Press the Key "Ctrl" from the keyboard, then click the key "Up Arrow".
The cursor will move to the top of the current Worksheet.