The Character Encoding Indicator shows the character encoding of the files.
If both or all 3 files have the same character encoding, the value is listed once.
If each file has a different encoding, each is listed separately. DiffMerge compares the files after the files have been converted from the original character encoding into UNICODE. So files that are in different encodings can be compared.
If a file contained a UNICODE Byte Order Mark (BOM), a
will be shown.