well, looking at Spreadsheet::XLSX module reveals that it uses regular expressions to parse XLSX 
        $mstr =~ s/<t\/>/<t><\/t>/gsm;  # this handles an empty t tag 
+in the xml <t/>

[download]
and this is widely accepted as bad approach.

Actually such regular expressions on huge strings usually cause out-of-memory.

I can not think of any better advice, other than updating this module and then proposing changes to author.

Regards,
Vadim.

In reply to Re: Out of Memory by vkon
in thread Out of Memory by ETLTCHFIG

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