classpublic class OpenedFile Stores basic information about a file which has been chosen by the user and has had its contents loaded into memory.
Initializes a new instance of the OpenedFile class
with the specified filename and byte data.
The filename including the extension.
The file extension (including the period ".").
The loaded byte contents of the file.
A helper function which can be used to return the byte contents of the file interpreted as a UTF-8-encoded string.