Arguments
folder
logical, TRUE all files in folder will be imported,
FALSE only selected file will be imported.
suffix
string, only files with specified suffix will be imported.
prefix
string, only files with specified prefix will be imported.
fileName
string if file name is provided file will be imported
without showing the file open dialogue.
folderName
string if folder name is provided files in folder
will be imported without showing the select folder dialogue.
extension
string providing the file extension.
debug
logical indicating printing debug information.