Although you want to keep things simple, sometimes you want the contrary.
The Mp3tag export feature allows to write a text file with different encoding: ANSI or UTF-16 or UTF-8.
From the Mp3tag help manual ...
If you enabled writing of UTF-8 or UTF-16 via the $filename function in the export configuration, this option enables writing of a Byte Order Marker which is required by some applications.
You can set the filename of the exported file with the function $filename(name[,enc]).
The optional second parameter sets the encoding of the export file.
Possible values are ansi, utf-8 and utf-16.
$filename(test.txt)
$filename(test.txt,ansi)
$filename(test.txt,utf-8)
$filename(test.txt,utf-16)
Sometime it can help to have a look into the manual.
DD.20150226.0925.CET