Ensure you've met the requirements in the preinstallation list before you download the .msi file of the Add-in.
You can only have one version of Series 3 of the Excel Add-in installed on a device at a time.
- Uninstall any existing versions you have of the Excel Add-in from your device before you download a different version.
- Do not install multiple versions of the Excel Add-in on the same device.
To download a Series 3 version of the Excel Add-in, visit Downloads
Once your download completes, you can install it.