The UTF-8 encoding of U+0000 is a single NUL byte. The purpose is to make the encoding self-synchronizing (meaning it doesn’t need to be parsed from the beginning to be accurately decoded).

Click ‘More’ and then select the encoding you want, such as UTF-8.Hereafter, you should be able to read the email. Although it is not mandatory and you can change the default outgoing encoding ...

You can even control the type of language encoding Excel uses when reading the file, if your information deals with international names or titles. Use Java's FileWriter classes to create UTF-8 ...

Source code for the Java Development Kit (JDK) would be redone in UTF-8 (Unicode Transformation Format) to facilitate better-defined encoding, under a plan afoot in the OpenJDK Java community.