I think almut hit the mark: MS-Windows apps like wordpad, notepad, etc, all depend on having a file-initial byte-order-mark, expressed as the 3-byte utf8 rendering of the code point "U+FEFF", to serve as a sort of "magic number" so that the app "knows" the file contains utf8 data.

In reply to Re^3: XML:: DOM and Accented Characters by graff
in thread XML:: DOM and Accented Characters by freeflyer

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