A utility function to retrieve the file information of a filename, path, or URL.
get_info(file)get_ext(file)
Arguments
file: A character string containing a filename, file path, or URL.
Returns
For get_info(), a list is return with the following slots
input file extension or information used to identify the possible file format
format file format, see format argument of import()
type "import" (supported by default); "suggest" (supported by suggested packages, see install_formats()); "enhance" and "known " are not directly supported; NA is unsupported
format_name name of the format
import_function What function is used to import this file
export_function What function is used to export this file
filefile
For get_ext(), just input (usually file extension) is returned; retained for backward compatibility.