To stop your program at a "good" place, you can enter the debugger at the interesting place using

$DB::single = 1;

[download]

Personally, I would first reduce the data read in from Spreadsheet::Read and/or replace it with static data to speed things up.

In reply to Re: Perl Debugger degrades performance when reading large spreadsheet by Corion
in thread Perl Debugger degrades performance when reading large spreadsheet by boleary

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