How to unpack a DACPAC? When I right-click on a DACPAC file in windows explorer, I don't have an option to "Unpack" the file, like this document indicates:

https://docs.microsoft.com/en-us/sql/relational-databases/data-tier-applications/unpack-a-dac-package?view=sql-server-ver15

I have both Visual Studio 2019 and SSMS v18.4 installed. Am I missing something?  Right now the file is associated with Notepad.
Please select "Open With..." and then choose from the list "Microsoft SQL Server DAC Package File Unpack Wizard". It should be also default association for this file type.

If you don't have this option, you can also rename this file to .zip and use any unzip tool.