This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
Note
Access to this page requires authorization. You can trysigning in orchanging directories.
Access to this page requires authorization. You can trychanging directories.
Displays or modifies file types that are used in file name extension associations. If used without an assignment operator (=), this command displays the current open command string for the specified file type. If used without parameters, this command displays the file types that have open command strings defined.
Note
This command is only supported within cmd.exe and is not available from PowerShell.Though you can usecmd /c ftype as a workaround.
ftype [<filetype>[=[<opencommandstring>]]]| Parameter | Description |
|---|---|
<filetype> | Specifies the file type to display or change. |
<opencommandstring> | Specifies the open command string to use when opening files of the specified file type. |
| /? | Displays help at the command prompt. |
The following table describes howftype substitutes variables within an open command string:
| Variable | Replacement value |
|---|---|
%0 or%1 | Gets substituted with the file name being launched through the association. |
%* | Gets all of the parameters. |
%2,%3, ... | Gets the first parameter (%2), the second parameter (%3), and so on. |
%~<n> | Gets all of the remaining parameters starting with thenth parameter, wheren can be any number from 2 to 9. |
To display the current file types that have open command strings defined, type:
ftypeTo display the current open command string for thetxtfile file type, type:
ftype txtfileThis command produces output similar to the following:
txtfile=%SystemRoot%\system32\NOTEPAD.EXE %1
To delete the open command string for a file type calledexample, type:
ftype example=To associate the .pl file name extension with the PerlScript file type and enable the PerlScript file type to run PERL.EXE, type the following commands:
assoc .pl=PerlScriptftype PerlScript=perl.exe %1 %*To eliminate the need to type the .pl file name extension when invoking a Perl script, type:
set PATHEXT=.pl;%PATHEXT%Was this page helpful?
Need help with this topic?
Want to try using Ask Learn to clarify or guide you through this topic?
Was this page helpful?
Want to try using Ask Learn to clarify or guide you through this topic?