Example usage for ftype.
ftype txtfileftype command
View or change the open command associated with a file type.
Documented syntax
ftype [<filetype>[=[<opencommandstring>]]]The linked Microsoft Learn article is the upstream authority. Availability may depend on Windows release, role, optional feature or interactive tool context.
Examples
Parameters, options and clauses
| Option / clause | Description |
|---|---|
<fileType> | Select the file type to query or change. |
=<openCommandString> | Set the command used to open files of that type. |
/? | Display command help or the supported command-line usage. |
Variable | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
%0 or %1 | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
%* | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
%2, %3, ... | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
%~<n> | Microsoft documents this argument or subcommand; check the linked reference for its required format and context. |
Review a command and its target before running it. Commands that alter files, services, accounts, disks, permissions or databases may be difficult to reverse. Test in a safe environment and keep backups.