bakx

.bakx — Microsoft SQL Server Backup Compressed

Microsoft · 2016

Developer

Microsoft

Key Features

Database backup in a compressed format.
Reduces storage space requirements for backups.
Directly readable by Microsoft SQL Server.
Proprietary Microsoft format.

Best For

Compressing SQL Server database backups to save disk space.
Creating smaller backup files for easier transfer.
Ensuring compatibility with SQL Server restore operations.

Less Ideal For

Storing backups for non-Microsoft SQL Server databases.
Sharing database backups with systems that cannot read SQL Server formats.
Using as a general-purpose archive file.

Common Use Cases

Archiving full SQL Server database backups.
Storing backups efficiently for disaster recovery.
Transferring large database backups over networks.
Maintaining historical versions of databases.

How to Open It

Use SQL Server Management Studio (SSMS) to restore the database from the .bakx file.
Execute the RESTORE DATABASE command within SQL Server, specifying the .bakx file path.
Ensure you are using a compatible version of SQL Server that supports .bakx compression.

What is a .bakx file?

The .bakx file extension is used for compressed backup files created by Microsoft SQL Server. These files contain a compressed copy of a database, including its structure and data. This format is specifically designed to reduce the storage space required for backups, making them more efficient to manage and transfer. When restoring a database, SQL Server can directly read and decompress these .bakx files. It's a proprietary format, meaning it's intended for use with SQL Server tools.

Programs That Open .bakx Files

Platform	Program
Windows	Microsoft SQL Server Management Studio (SSMS)	Free	Official

How to Convert .bakx Files

Format	Method
.BAK	SQL Server Management Studio, Transact-SQL script
.ZIP	SQL Server Management Studio, File archiving tools (after extraction)

Common Problems with .bakx Files

⚠️ File is corrupted or incomplete

Ensure the backup completed successfully. If corrupted, you may need to restore from an older backup or attempt repair if possible.

⚠️ Cannot restore on older SQL Server version

Verify that the SQL Server version you are using for restore supports the compression used in the .bakx file. Newer versions generally support older compression formats.

Frequently Asked Questions

What is a .bakx file?▼

.bakx files are compressed backup files created by Microsoft SQL Server to save storage space.

Can I open a .bakx file directly?▼

No, you cannot open a .bakx file directly. It must be used to restore a SQL Server database using tools like SQL Server Management Studio.

Is .bakx the same as .bak?▼

No, while both are SQL Server backup formats, .bakx specifically indicates a compressed backup file created using SQL Server's native compression feature.

Technical Details

.bakx files are essentially SQL Server backup files that have been compressed using the native compression feature within SQL Server. The compression algorithm is proprietary to Microsoft. They contain serialized database objects and data. The file signature typically starts with 'SQL Server Backup'.

Did You Know?

The 'x' in .bakx is thought to denote the extension of a compressed backup file.

SQL Server's native compression can reduce backup file size by up to 70%.

Security Information

.bakx files contain database data, which can be sensitive. Secure these files by storing them in trusted locations with appropriate access controls. Avoid downloading .bakx files from untrusted sources, as they could potentially be tampered with or contain malicious code, though this is less common for backup files themselves compared to executables.