I failed to do that by code
__BEGIN__
open MyFile, ">:encoding(utf-8 )", "a.txt";
print MyFile "aaaa";
close MyFile
__END__

Question is, I want to write a visual studio solution file (.sln) which can't be recognized if it is not encoded in UTF-8 although the characters in it are all ASCII

In reply to How can I create an UTF8 encoded txt file contains strings like "aaaa"? by sinbao

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