ALL outputs of best64.rules of a word in a dic.

[kolme]

Try this one:

hashcat-cli64.exe -r best64.rule --stdout myword.txt > myword-mangled.txt

You can also use sort.exe to have unique plains:

hashcat-cli64.exe -r best64.rule --stdout myword.txt | sort.exe -u > myword-mangled.txt