Thanks Nick.  Looks like that'll read the stuff (if a bit awkwardly... not
seeing an easy way to convert the example into an iterator for external
processing of one row at a time).  However, that aside, I'm now being asked
if it is possible to write files with the event model.  My understanding
from looking at this is that it won't go both ways, but please correct me if
I'm wrong? (Preferably with some kind of example)

Thanks,

-----------------------------
Brian Trezise
IntelliData, Inc.
Staff Software Engineer
[email protected]
t: 720.524.4864
m: 303.809.9782


-----Original Message-----
From: Nick Burch [mailto:[email protected]] 
Sent: Thursday, August 26, 2010 14:00
To: POI Users List
Subject: Re: I need to read only (not write) large xls and xlsx files

On Thu, 26 Aug 2010, Brian Trezise wrote:
> No formulas, hidden cells, or anything fancy.  Anywhere between 5 and 40 
> columns, and sometimes our datasets approach the 1,000,000 row limit of 
> .xlsx.  I have been searching for a way to read and iterate over the 
> rows of these very large data files on and off for a month now with no 
> luck.

You want SAX parsing of the file, that's the quickest and lowest memory 
way to do it. (Requires more work on your part though). See
        http://poi.apache.org/spreadsheet/how-to.html#xssf_sax_api

Nick

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