How to do offline downgrade of Excel LTSC 2021 to Excel LTSC 2019

Question

I have installed Excel LTSC 2021 and activated with MAK license key using offline methods since the workstation cannot be connected to internet due to cybersecurity reasons.

Now I have to downgrade the excel version to LTSC 2019 as per customer recommendation, that too only via offline methods. please provide the steps.

Answer 1

Hi,

You can use ODT to help you specify a SourcePath to install Office to local shared folder, and then share the shared folder with other users for installation. For more information, please refer to: Deploy Office 2019:

1. Please download the latest version of ODT.
2. Configure the .xml file and rename it to configuration.xml as shown below. You only need to change \Server\Share to the correct folder path. <Configuration>
   <Add SourcePath="\Server\Share" OfficeClientEdition="64" Channel="PerpetualVL2019">
   <Product ID="Excel2019Volume">
   <Language ID="en-us" />
   </Add>
   <RemoveMSI />
   <Display Level="None" AcceptEULA="TRUE" />
   </Configuration>
3. Launch the command prompt as administrator, go to the folder where you saved the ODT and the configuration.xml file, and type the following command as shown below:
   setup /download configuration.xml
   
4. After downloading, type the following command to install it.
   Other users only need to copy the setup.exe and configuration.xml files to the local computer, go to the path of the ODT file, and run the following command to install:

setup /configure configuration.xml

Just checking in to see if the information was helpful. Please let us know if you would like further assistance.

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