.FRM File

File extension frm is associated with MySQL, a popular relational database management system (RDBMS).

Every MySQL table is represented by MySQL database metadata file on disk as a frm file (also known as "Format" file).

A .frm file describes the table's format (table definition) including fields and structure of each table. The file has the same name as the table. FRM files are also important for MySQL database recovery.

MySQL database metadata files (.frm files) are related to MySQL database data files (.myd files and .myi files).

​Old database system dBase was also using FRM file extension for one of its format. However, this format, known as dBase FRM report is in no way related to MySQL FRM format.

Files with frm extension is used for MySQL database metadata files. MySQL metadata files contain description of table's format.

How to open:

The *.frm files are used for internal purposes of MySQL database system.

How to convert:

These files contain just metadata, thus they are not meant to be converted anything else.