I think this way.

given that all you need is to get XLSX data - probably to get some kind of DB values - then, just do not use this CPAN module, just extract your data yourself,
be your-application-centric.

But before doing that, drop a letter to CPAN author - it could be that he is responsive and will provide you with a solution soon.
Otherwise - just reuse his code of "unzipping" the content, and then use your own regular expression.

But better than that - feed you resulting XML string into properly constructed XPATH expression - and feed this XPATH expression to Xml::LibXML - it is very efficient on XPath expressions, but other modules dealing with XPath also will suffice.
(I - personally - have good experience with mentioned one, and TIMTOWTDI)

This would be best way out of this situation - this is how I feel it.

Is 40Mb - a size of ZIPped XLSX, or it is a size after unpacking?

In reply to Re^3: Out of Memory by vkon
in thread Out of Memory by ETLTCHFIG

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