Java – How to read/write Excel file with Apache POI

In this tutorial, we’re gonna look at examples that read and write Excel file using Apache POI.

I. Dependency

II. Write Data to Excel File

– Simple POJO Customer (id, name, address, age):

– Write to Excel file:

– Check results in customers.xlsx:

read-write-excel-file-apache-poi-result

III. Read Data from Excel File

– Check Result in Console:

By JavaSampleApproach | February 24, 2018.

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2 thoughts on “Java – How to read/write Excel file with Apache POI”

  1. If i try your code I get a Exeption:
    Exception in thread “main” java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlObject
    at TesterNo4ApachePOI.main(TesterNo4ApachePOI.java:28)
    Caused by: java.lang.ClassNotFoundException: org.apache.xmlbeans.XmlObject
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    … 1 more

    1. Ok my fault, didn’t know that I have to integrate the XMLbeans.jar extra. I thought it would be enough to add the poi-ooxml.jar

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