I have a text file in spanish, how can I normalize all spanish characters (remove tildes and covert letters)

example

convert all
ñ to n's
ó to o

I know about the Unicode::Normalize module but I don't understand how to use it

Have you tried using search and replace? You could iterate through the text file and do something like this:

$_ =~ s/ó/o/g;
$_ =~ s/ñ/n/g;
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