How to restore a Microsoft SQL Server database from a DB file?

Question

SQL Server

There is a db file. It was copied in an unknown way. We need to restore it. An exemplary structure and environment is known. Known logins passwords to the database. When viewing the file in Hex, there are lines "TYPE ... Microsoft SQL Server ... SPAD". Standard restore fails to restore.

Answer 1

But the studio required the ASF file extension or something similar

Recovery is possible from a file with any extension.

File selection

Perhaps the problem is in the versions. Because the file apparently was created in mssql server 2008.

Any version: 2008 or higher.
Documentation: Restore a Database Backup Using SSMS .