On Fri, 14 Nov 2014, nitinK wrote:
I have 64000 records with 13 columns and it is taking 25-30 minutes to generate...can anyone please help me..I have to complete my performance testing...

See the FAQ for advice - http://poi.apache.org/faq.html#faq-N10109 - the problem is most likely in your code for fetching Data. Writing a 64k row, 13 column file with XSSF takes 15 seconds on my laptop (HSSF and SXSSF were both 3 seconds). Any problem would therefore seem to be with your code, not POI!

Nick

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