I'a, really sorry now you are right to accuse me of not expressign myself correctly to what i need to do.
The way i should have asked would be "How to change this line Encode::from_to(@menu_files, 'ISO-8859-7', 'utf8') since it's first argument cannnot be an array, to a repeatition structure that could take place in only an one line which is Encode::from_to($_, 'ISO-8859-7', 'utf8') for (@menu_files); and not like the following:

for $menu_file (@menu_files)
{
  Encode::from_to($menu_file, 'ISO-8859-7', 'utf8');
}
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I'am sorry sometimes i need to say what i want in a short kind of a way, so to avoid posting too many lines but i fail to do it properly when i hurry(an yesterday i was ansering at many threads at many forums).I'd be more carefull in future.

Don't take this as an insult, but hopefully one, Graff, understood what i meant :-)