The is a specific software utility provided by Microsoft for macOS environments. Its primary function is to activate Volume Licensed versions of Microsoft Office 2021 (including Office LTSC 2021) without requiring a connection to the Microsoft cloud or a Key Management Service (KMS) during the initial launch by the end-user.
💡 : If you are setting up a new Mac today, consider Office LTSC 2024 instead. It uses a similar VL Serializer but offers a longer support window and improved performance on modern hardware. End of support for Office 2021 - Microsoft Support microsoft office 2021 vl serializer mac
To obtain and use the VL Serializer, follow these steps through the Microsoft 365 Admin Center : The is a specific software utility provided by