Open manually; may run a program or script when opened
★ ★ ★ ★ ☆ Common
Contains the formatting information or structure data for a MySQL database; specifies the tables stored in the database and defines the fields and structure of each table.
FRM files are saved along with an .MYD file, which contains the actual data stored in the database. Both files are necessary for MySQL to recognize the database. If the MySQL database uses MyISAM tables, an .MYI file is also used and required.