Read an Excel file using POIFSFileSystem API

hello,
I'm working on J2EE web assignment. Following is my requirement
1) User select local excel file and hit submit
2) API takes that file read and create a new Excel file.
I am wondering if I can somehow get inputsteam on form post and then pass it to POI api
POI api syntax
POIFSFileSystem fs = new POIFSFileSystem(java.io.InputStream);
thanks,
Amit

there are plenty of tutorials and docs online
this site is for technical help, general questions should be submitted to Google

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package businessLogic;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
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import org.apache.poi.hssf.record.Record;
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java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
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I am not getting why this exception is cming
can anyone help me pls reply

Does your Excel file has the "AutoFilter" activated?
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I am having some problem when reading the excel file.
While reading excel file I am getting error-java.io.IOException: Unable to read entire block; 4 bytes read; expected 512 bytes.
part of my code:-
InputStream stream = objFormFile.getInputStream();
POIFSFileSystem fs = new POIFSFileSystem(stream);//getting above error here.
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I download the file on the system ,save it ,and then directly upload it to the system ,I get the above error .
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Problem: this mac is not reading an excell file after upgrading to yosemite.   My Mac is from 2009, it use to work perfectly but it wasn´t able to open some apps, thats why i upgrade it.   Now it once i donwload the zip it appears with an ".ods" extension
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fsolution wrote:
Problem: this mac is not reading an excell file after upgrading to yosemite...   Now it once i donwload the zip it appears with an ".ods" extension...
If the "it" refers to a compressed (zipped) spreadsheet that you downloaded, the ".ods" extension is used by LibreOffice and probably OpenOffice (which are free versions of MS Office) for spreadsheets, which would suggest that wherever you're getting that "Excel" file from has switched to one of those programs. I've tried opening an .ods file from LibreOffice using MS Office 2013 for Windows and it does open though with a warning that some things have been changed. I don't know if Office for Mac can normally open .ods files. But if your need is to just open .ods files, take a look at LibreOffice.

Read an Excel file using POIFSFileSystem API

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