Step 3: Activate Add-in

Once Excel Lab has been installed, you will need to activate the add-in. To do this in Microsoft Excel

(1) Open Excel

(2) In Excel's menu, select File -> Options

(3) In Excel's options menu, select Add-ins

(4) At the bottom of the dialog, click on Go... (Excel Add-ins)

(5) An Add-ins window will pop up, click on Browse...

(6) Select the Excel Lab add-in file at the following location

C:\Program Files\Windham Labs\WindhamXlsLab\application\WindhamXlsLab.xla

(7) Click OK. The add-in should be activated.