Open Orca(https://learn.microsoft.com/en-us/windows/win32/msi/orca-exe)
Open the MSI file
Drag the MST file into Orca
Make changes for the MST
To save new MST go to Transform > Generate Transform
Open Orca(https://learn.microsoft.com/en-us/windows/win32/msi/orca-exe)
Open the MSI file
Drag the MST file into Orca
Make changes for the MST
To save new MST go to Transform > Generate Transform