Add-ins and other extensibility solutions that are compatible with volume licensed versions of Office 2019 will most likely be compatible with Office LTSC 2021 or will require only minimal testing. Note: Don't see an install option after signing Per? There could be an issue with your account. Select Need help? https://microsoft-office-202473715.losblogos.com/28260158/ottenere-il-mio-microsoft-office-lizenca-to-work