SQLLite is an in-memory database with a backing store file. You just add the library (nuget package) to your app.
the sample code create the database file the first time it’s run. The name and path will be in the connection string. The default folder will be the bin folder.
once you have a database file, you can pick any 3rd party tool to open it (only one app can access at a time). Google for several options.