* Converts a UTF-8 string into BIFF8 Unicode string data (16-bit string length)
* Writes the string using uncompressed notation, no rich text, no Asian phonetics
* If mbstring extension is not available, ASCII is assumed, and compressed notation…
* Converts a UTF-8 string into BIFF8 Unicode string data (8-bit string length)
* Writes the string using uncompressed notation, no rich text, no Asian phonetics
* If mbstring extension is not available, ASCII is assumed, and compressed notation is…