Text alignment in excel file using Apache POI in Java

With this example we will show you how to align text in an excel file using Apache POI in Java language.

The Apache POI is to create and maintain Java APIs for manipulating various file formats based upon the Office Open XML standards (OOXML) and Microsoft’s OLE 2 Compound Document format (OLE2). You can read and write MS Excel files using Java. In addition, you can read and write MS Word and MS PowerPoint files using Java. Apache POI is the Java Excel solution (for Excel 97-2008).

For more information please go through https://poi.apache.org/

If you already have an idea on how to create a maven project in Eclipse will be great otherwise I will tell you here how to create a maven project in Eclipse.


The following things are required in order to run the application

Eclipse Kepler
JDK 1.8
Have maven 3 installed and configured
Apache POI dependencies in pom.xml

Now we will see the below steps how to create a maven based spring project in Eclipse

Step 1. Create a standalone maven project in Eclipse

Go to File -> New -> Other. On popup window under Maven select Maven Project. Then click on Next. Select the workspace location – either default or browse the location. Click on Next. Now in next window select the row as highlighted from the below list of archtypes and click on Next button.


Now enter the required fields (Group Id, Artifact Id) as shown below

Group Id : com.roytuts
Artifact Id : apache-poi

Step 2. Modify the pom.xml file as shown below.

Step 3. If you see JRE System Library[J2SE-1.5] then change the version by below process

Do right-click on the project and go to Build -> Configure build path, under Libraries tab click on JRE System Library[J2SE-1.5], click on Edit button and select the appropriate jdk 1.8 from the next window. Click on Finish then Ok.

Step 4. Create a class for creating and writing to the excel file

Step 5. Create a utility class

Step 6. Create a class which holds constants

Step 7. Run the above test class, you will get workbook.xlsx file created. Open the file you will get the output in sheet “my_sheet”.

That’s all. Thanks for reading.


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