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How to edit a large .xlsx(3 MB) file using apache poi ?

 
Sidhartha Ray
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Posts: 29
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Hi experts,

I've a large .xlsx file with multiple sheets in it. I've to retrieve one perticular sheet from the workbook & put some values in some columns.

I've already visited these :

http://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/xssf/eventusermodel/XLSX2CSV.java
-I found, we can only read by using it

http://stackoverflow.com/questions/7274076/writing-a-large-resultset-to-an-excel-file-using-poi
-I found, we can only write new sheets, can't modify existing sheets.

I want your suggestions regarding this........

Thanks in advance..........
 
It is sorta covered in the JavaRanch Style Guide.
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