For a given Excel file (here Geeks.xlsx), it is needed to create sheets in it.

Steps:

1. Create a JAVA Maven project
2. Add dependency in pom.xml file
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   <!-- https://mvnrepository.com/artifact/org.apache.poi/poi --> <dependency>       <groupId>org.apache.poi</groupId>       <artifactId>poi</artifactId>       <version>3.12</version>     </dependency>     <dependency>       <groupId>org.apache.poi</groupId>       <artifactId>poi-ooxml</artifactId>       <version>3.12</version>     </dependency>

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3. Create a class in javaResource folder
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   import java.io.*; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Workbook;    public class CreateSheet {     public static void main(String[] args)        throws FileNotFoundException, IOException     {            // Creating Workbook instances         Workbook wb = new HSSFWorkbook();            // An output stream accepts output bytes and sends them to sink.         OutputStream fileOut = new FileOutputStream("Geeks.xlsx");                    // Creating Sheets using sheet object         Sheet sheet1 = wb.createSheet("Array");         Sheet sheet2 = wb.createSheet("String");         Sheet sheet3 = wb.createSheet("LinkedList");         Sheet sheet4 = wb.createSheet("Tree");         Sheet sheet5 = wb.createSheet("Dynamic Programing");         Sheet sheet6 = wb.createSheet("Puzzles");               System.out.println("Sheets Has been Created successfully");            wb.write(fileOut);     } }

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Output:

Sheets Has been Created successfully

Here 6 sheets has been created in geeks.xlsx file: