You must have:
Add a Sage Function.
Choose Insert > Function.
The Insert Function window appears.
Select the required function from the Select a Function box. A description of what the function does is displayed underneath.
Depending on the selected function, you may need to enter the name of the account or value you require. If prompted, enter the exact name of the value or account, as specified in Sage 200.
Save the report. We recommend that you save the report in the same folder used by Sage 200.
By default, this is in the ...Sage\Excel folder. If you are using Sage 200 on a network, you will need to specify the network path.
You can add your new report to the Menu view on the Navigation bar, using the menu design mode.