Using the following line: print "Content-type: application/vnd.ms-excel", "\n\n"; will force anything viewed in IE to open via Excel. It can be used like so:

 

#!/usr/bin/perl

open TABBED_FILE,"your_tabbed_file.txt";# or die "cant open tabbed fil
+e $!";
@data = <TABBED_FILE>;
close TABBED_FILE;

 print "Content-type: application/vnd.ms-excel", "\n\n";
 print "Col A\tCol B\Col C\n";

foreach $line(@data)
{ my ($thingA,$thingB,$thingC)=split(/\t/,$line);
  print "$thingA\t$thingB\t$thingC\n";
}
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