I know two ways to import DACPAC file.
Via SQL Server Management studio:
- Right-click on Databases in object explorer
- Select: Deploy Data-Tier Application
- Follow the prompts
Via sqlpackage.exe utility:
Execute next command for the start import:
sqlpackage.exe /SourceFile:"w:\temp\SampleDb.dacpac" /Action:Publish /TargetServerName:"." /TargetDatabaseName:"SampleDb"
You can find more information about sqlpackage.exe parameters here.
The .dacpac file is a zip archive, and you can open it using an archiver application. This can be useful if you want to see what is in the file before importing into the database. For example: change the file extension to .zip and open in Windows Explorer.