Determine if a file is a CSV file

IF (! ") 1)). Equalsignorecase (" CSV ")) {"). EqualsignoreCase ("csv")) {

String csvfilename = filepath.substring (0, filepath.lastindexof (".") 1) "CSV";

File csvfile = new file (csvfilename);

IF (csvfile.exists ()) {

csvfile.delete ();

}

}