Choose File — applescript

Choose File is a Command in the User Interaction Suite of the Standard Additions Dictionary.

Parameters

choose file v : Choose a file on a disk or server

[with prompt text] : the prompt to be displayed in the dialog box
[of type list of text] : a list of file types or type identifiers. Only files of the specified types will be selectable.
[default location alias] : the default file location
[invisibles boolean] : Show invisible files and folders? (default is false)
[multiple selections allowed boolean] : Allow multiple items to be selected? (default is false)
[showing package contents boolean] : Show the contents of packages? (Packages will be treated as folders. Default is false.)

→ alias : the chosen file