- From the menu, select Format -> Cell
- In the window that opens up, make sure the 'Number' tab is selected
- Select the category as 'Custom'
- In the 'Type' field, enter the below format and click 'OK'
[>=10000000]##\,##\,##\,##0.00;[>=100000] ##\,##\,##0.00;##,##0.00
