Do the following (based on your example data above)
- Create a line chart using your values in Col-1 (i.e. 1,2,3)
- In the diagram, place the cursor on the line and right-click and select "Data Series Format"
- In the dialog box, select "Error Scales Y"
- "" ""
- "" " "
- "+" "-" , Col-2 (0,1, 0,2, 0,1)
- "Ok".