– Copy the entire c:TempVS2019_Layout folder to a location accessible by the computer where you want install Visual Studio My goal was to install the SSAS and SSIS SSDT extensions only, so I install the minimum required. You can of course adjust the component you want to install depending on your development needs. – Download the Visual Studio offline installation executing this command vs_enterprise.exe -layout c:TempVS2019_Layout -add -add -includeOptional -lang en-US – First you have to download the Visual Studio Bootstrapper To prepare an offline installation of Visual Studio 2019 and the SSDT extensions, you need first to do some work on a computer having an internet connection. Note: refer to the Microsoft web documentation, to see if the SSDT extensions have been released for higher version of Visual Studio This blog explains how to install offline Visual Studio 2019, its mandatory component to install afterward the SSAS and SSIS extensions. Of course, it can be easy if you have an internet connection, but how to install it in offline mode. With Visual Studio 2019, there is no SSDT standalone installer, so you have to install the extensions. You were able to install it as a standalone Visual Studio for SSDT or for an already installed Visual Studio 2017.

Before Visual Studio 2019, you were able to install the SSDT with the offline installer.

Ssdt for visual studio 2017