The Source Format in "Guess value" takes any format string, so it is not limited to the filename.
See e.g. this thread for an example
(on a Mac "Guess values" is called "Import tag fields")
The Source Format in "Guess value" takes any format string, so it is not limited to the filename.
See e.g. this thread for an example
(on a Mac "Guess values" is called "Import tag fields")