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From <frederic.ferr...@ing.be>
Subject RE : Out of memory exception, and too large files generated
Date Mon, 13 Jun 2005 13:03:32 GMT

sorry, I found out where the problem was, it's in our code...
No POI problem, in fact. *gasp*

-----Original Message-----

I have the same problem exporting smaller files, but my generated sheet
contains many styles and many merged cells, which disables the use of
The file created contains two rows per 'record', in which some cells are

vertically merged, 2 by 2 (7 merged cells for a total of 16 columns).
The size of the generated XLS file is quite too big, and seems to rise
 10 records ->    14 Kb
 20 records ->    28 Kb
 50 records ->   102 Kb
100 records ->   337 Kb
200 records -> 1,220 Kb
500 records -> 7,179 Kb
I get 'out of memory' when generating files for more records...

The tricky bit about it is that when I open and save the 500 records
file using Excel 2003, it's size change from 7,179 Kb to 276 Kb (569 Kb
if I
save to XLS_97 format).

I can't figure out what unnecessary information is appended to the file
opened it with a hex editor, it seems to contain useless bytes, but I
know yet what the structure of these files is).

Does anyone have a clue, or did anyone already encounter this kind of

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