I copied the text in parentheses from the page you linked to, which explains the encoding method's return values:

The encoding() method returns one of the following values:

    * 0: Unknown format. This shouldn't happen. In the default case th
+e format should be 1.
    * 1: 8bit ASCII or single byte UTF-16. This indicates that the cha
+racters are encoded in a single byte. In Excel 95 and earlier This us
+ually meant ASCII or an international variant. In Excel 97 it refers 
+to a compressed UTF-16 character string where all of the high order b
+ytes are 0 and are omitted to save space.
    * 2: UTF-16BE.
    * 3: Native encoding. In Excel 95 and earlier this encoding was us
+ed to represent multi-byte character encodings such as SJIS.

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In reply to Re^4: Handling variety of languages/Unicode characters with Spreadsheet::ParseExcel by richb
in thread Handling variety of languages/Unicode characters with Spreadsheet::ParseExcel by richb

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