- Download and unzip DAMAGE_Calculator_v1.4.piz
- Save the “Brain_Injury.xlam” file in “C:\Users\USERNAME\AppData\Roaming\Microsoft\AddIns” where USERNAME is your Windows login name.
Open Excel and select File – Options – Add-Ins (from left menu) – then click Go at the bottom.
- Make sure that the Brain_Injury Add-in is checked in the dialog box and click Ok.