IIRC, Sort::Naturally implemented some tricks to be more like a file explorer, while Sort::Key::Natural is more pure.

If you want the file extension to be treated as an independent secondary sorting key, you can use Sort::Key::Maker for creating a multi-key sorting function: 

use Sort::Key::Natural;
use Sort::Key::Maker sort_filenames => sub { /^(.*?)((?:\.[^\.]*)?)$/ 
+}, qw(natural natural);

my @filenames = qw(...);

my @sorted = sort_filenames @filenames;

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In reply to Re: Natural Sort / Windows sort problem by salva
in thread Natural Sort / Windows sort problem by cr8josh

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