Comments on: Reading Excel Sheet Documents in Java

By: Imran

Imran — Mon, 26 Jul 2010 08:57:27 +0000

Hey can any one tell me from where should i download jxl package and where should I place it to compile my source code.

By: Neeraj

Neeraj — Fri, 02 Jul 2010 15:11:38 +0000

Can anybody help me in writing the content of an excel file into an XML file in java.

Actually i m able to read the excel file but m trying to output the data into the xml file through an object of FileWriter but its not working…
please provide me with some better code.
_________________________________________________
This is my code which m trying to execute:
**NOTE:I wasn’t able to write tags on this site so i used curly braces for tags instead of angular braces

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.*;
import jxl.Cell;
import jxl.CellType;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;

public class ReadExcel {

public static void main(String[] args) throws IOException {
String inputFile = “c:/data.xls”;

File inputWorkbook = new File(inputFile);

File fileout = new File(“C:/data.xml”);
FileWriter fw = new FileWriter(fileout);

fw.write(“{root}”);

Workbook w;
try {
w = Workbook.getWorkbook(inputWorkbook);
// Get the first sheet
Sheet sheet = w.getSheet(0);
// Loop over first 10 column and lines

for (int i = 0; i < sheet.getColumns(); i++) {
for (int j = 0; j < sheet.getRows(); j++) {
Cell cell = sheet.getCell(j, i);
//CellType type = cell.getType();
if (cell.getType() == CellType.LABEL) {
fw.write("{tag} "+ cell.getContents()+"{/tag}");
}

if (cell.getType() == CellType.NUMBER) {
fw.write("{tag} "+ cell.getContents()+"{/tag}");
}

}
}
fw.write("{/root}");

} catch (BiffException e) {
e.printStackTrace();
}
}
}

By: Neeraj

Neeraj — Fri, 02 Jul 2010 15:08:03 +0000

Can anybody help me in writing the content of an excel file into an XML file in java.

public class ReadExcel {

public static void main(String[] args) throws IOException {
String inputFile = “c:/data.xls”;

File inputWorkbook = new File(inputFile);

File fileout = new File(“C:/data.xml”);
FileWriter fw = new FileWriter(fileout);

fw.write(“”);

Workbook w;
try {
w = Workbook.getWorkbook(inputWorkbook);
// Get the first sheet
Sheet sheet = w.getSheet(0);
// Loop over first 10 column and lines

if (cell.getType() == CellType.NUMBER) {
fw.write(” “+ cell.getContents()+”");
}

}
}
fw.write(“”);

} catch (BiffException e) {
e.printStackTrace();
}
}
}

By: Shan

Shan — Tue, 29 Jun 2010 08:24:01 +0000

I am getting this error when i run the code posted above. I dont really understand the problem. Thanks in advance.

jxl.read.biff.BiffException: Unable to recognize OLE stream
at jxl.read.biff.CompoundFile.(CompoundFile.java:116)
at jxl.read.biff.File.(File.java:127)
at jxl.Workbook.getWorkbook(Workbook.java:268)
at ReadXLSheet.contentReading(ReadXLSheet.java:55)
at ReadXLSheet.init(ReadXLSheet.java:20)
at ReadXLSheet.main(ReadXLSheet.java:109)

By: Thomas

Thomas — Mon, 24 May 2010 14:23:54 +0000

Hi,

I’ve written the following function:

public void read() throws IOException {
File inputWorkbook = new File(“c:/temp/test.xls”);
Workbook w;
try {
w = Workbook.getWorkbook(inputWorkbook);
…
} catch (BiffException e) {
e.printStackTrace();
}
}

When I run this function within a normal Java Application together with JFace everything works fine. But when I run this function inside a RCP project I get the following error:

java.lang.ClassNotFoundException: jxl.read.biff.BiffException
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:494)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:398)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(Unknown Source)
at model.CollectionManager.newOilFor(CollectionManager.java:120)
at model.CollectionManager.loadCollection(CollectionManager.java:107)
at model.CollectionManager.getCollection(CollectionManager.java:56)
at hellooil.CollectionViewContentProvider.getElements(CollectionViewContentProvider.java:39)
…

Does someone know what could be wrong?

By: Hitesh Agrawal

Hitesh Agrawal — Sat, 08 May 2010 09:09:53 +0000

Hi Gaurav,
You will have to add JExcel API in your class path while compiling the java file, you can download the JExcelAPI from http://jexcelapi.sourceforge.net/

Thanks,
Hitesh Agarwal

By: Gaurav Arora

Gaurav Arora — Fri, 07 May 2010 00:22:25 +0000

I have downloaded your code and tryied to run it on ubuntu platform with jdk6
but at run time its showed this
Exception in thread \main\ java.lang.NoClassDefFoundError: ReadXLSheet
at java.lang.Class.initializeClass(libgcj.so.10)
Caused by: java.lang.ClassNotFoundException: jxl.Cell not found in gnu.gcj.runtime.SystemClassLoader{urls=[file:./], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
at java.net.URLClassLoader.findClass(libgcj.so.10)
at java.lang.ClassLoader.loadClass(libgcj.so.10)
at java.lang.ClassLoader.loadClass(libgcj.so.10)
at java.lang.Class.initializeClass(libgcj.so.10)

instead of output

CAN you please tell me whats the problem with my code i am not able to get and its urget

seeking towards help…
Thanks in advance

By: Hitesh Agrawal

Hitesh Agrawal — Wed, 21 Apr 2010 18:46:29 +0000

Hi Meneka,
Latest Apache POI supports xslx file.

Thanks,
Hitesh Agarwal

By: Menaka

Menaka — Tue, 20 Apr 2010 05:53:15 +0000

Hi Hitesh,
Do u have any idea about writing to .xlsx files. If yes can u pls share some code samples.
Thanks

By: sadanala

sadanala — Tue, 13 Apr 2010 07:50:14 +0000

where do i get jar file?

By: Prema GV

Prema GV — Thu, 25 Mar 2010 11:49:44 +0000

Hi thanks for the code………
Code worked fine when i run first time got result too….

But when i run same code after three times of exection…… its giving file not found and null point exception……….. plzzzz get me back with solution as soon as possible……..

Thanks in advance………………

By: Prema GV

Prema GV — Thu, 25 Mar 2010 11:41:23 +0000

Hi thanks for the code………
Code worked fine when i run first time got result too….

But when i run same code after three times of exection…… its giving file not found and null point exception……….. tHE path name specified is also correct….plzzzz get me back with solution as soon as possible……..

By: Manjunath

Manjunath — Mon, 15 Mar 2010 18:41:32 +0000

@Ganesh I am getting the same error as Ganesh got. My file is saved as .xls and is unblocked,but still getting the same BiffException.Please help

By: Paramjit

Paramjit — Thu, 18 Feb 2010 10:26:28 +0000

Been very useful…great work

By: Roshan Khandelwal

Roshan Khandelwal — Mon, 01 Feb 2010 06:57:02 +0000

Hi everyone ,
The code works pretty fine with one change.

After every case statement add a “break ”
so the revised code would be :

switch (j) {
case 0:
System.out.println(“Employee Id:” + rowData[j].getContents());
break;
case 1:
System.out.println(“Employee Name:” + rowData[j].getContents());
break;
case 2:
System.out.println(“Employee Designation:” + rowData[j].getContents());
break;
default:
break;
}

With the code as given , it loops through all three condition and gives an erroneous output.
Thanks for the code .