You cannot install 64-bit Project if you already have 32-bit Office apps installed. Change OfficeClientEdition to "32" in your XML if needed.
Save this file as download.xml inside your ProjectOffline folder. Step 3: Download the Installation Files ms project 365 offline installer
Choose specific versions or languages for your team. You cannot install 64-bit Project if you already
<Configuration> <Add OfficeClientEdition="64" Channel="Current"> <Product ID="ProjectProXVolume" PIDKEY="YOUR-PRODUCT-KEY-HERE"> <Language ID="en-us" /> <ExcludeApp ID="Access" /> <ExcludeApp ID="Excel" /> <ExcludeApp ID="OneNote" /> <ExcludeApp ID="Outlook" /> <ExcludeApp ID="PowerPoint" /> <ExcludeApp ID="Publisher" /> <ExcludeApp ID="Skype" /> <ExcludeApp ID="Teams" /> <ExcludeApp ID="Word" /> <ExcludeApp ID="OneDrive" /> </Product> </Add> <Property Name="SharedComputerLicensing" Value="0" /> <Property Name="PinIconsToTaskbar" Value="FALSE" /> </Configuration> Add OfficeClientEdition="64" Channel="Current">