The name of the package file is Microsoft_Office_LTSC_2021_VL_Serializer.pkg.Then, deploy and run the VL Serializer package file on each Mac that you want to activate Office as a volume licensed version. iso file to extract the VL Serializer package file. Once the download is complete, mount the.Select the icon (circle with download arrow) to download the VL Serializer.Select the Continue button at the bottom of the window.Select the Download link in the results panel.Search for 'Office LTSC Standard for Mac 2021' or 'Office 2019 for Mac Standard' (depending on which version of Office you're licensed for).Sign in to the Volume Licensing Service Center (VLSC).To download the VL Serializer, do the following steps: Download the Volume License (VL) Serializer from the VLSC The VL Serializer is a package (.pkg) file that you run on a Mac where Office is installed. The Volume License Serializer (VL) is used to activate Office LTSC for Mac 2021 or Office 2019 for Mac as a volume licensed version. Overview of the Volume License (VL) SerializerĪpplies to: Office LTSC for Mac 2021, Office 2019 for Mac