# assoc
> Display or modify file extension associations.
> More information: <https://docs.microsoft.com/windows-server/administration/windows-commands/assoc>.
- Display all associated filetypes:
`assoc`
- Display the associated filetype for a specific extension:
`assoc {{.txt}}`
- Modify the associated filetype for a specific extension:
`assoc {{.txt}}={{txtfile}}`
