$var="Files Checked IN: 
      test/abc.txt    1.23   1.3.4.5 
      team/hello.cpp  2.1    NONE
      Clear/thing.pl  NONE   1.2.34 
      etc etc";

my $pattern = '([\w./]+)\s+([\d.]+|NONE)\s+([\d.]+|NONE)';

if ( ( @matches = $var =~ m{$pattern}g ) >0 ) {
    print join('|',@matches),$/;
}