The OPEN URL command can be used to open a document in the user’s default program for that file type. Examples may include opening an image in “Preview” on Mac or “Windows Photo Viewer” on Windows.

var $file_t : Text var $fileName_t : Text $fileName_t:="examplePhoto.png" $file_t:=System folder(Desktop)+$fileName_t OPEN URL($file_t)

An app name can be provided to open the document in a specific program if the user has it installed. The last line can be replaced with the following in order to open the image in Firefox, for example.

OPEN URL($file_t; "FireFox")