Freeze Panes in Excel with Java. For further details: https://kb.aspose.com/cells/java/freeze-panes-in-excel-with-java/

Freeze Panes in Excel with Java.java

import com.aspose.cells.*;
public class Main
{
    public static void main(String[] args) throws Exception // Freeze panes in Excel
    {
        // Set the licenses
        new License().setLicense("License.lic");

        // Instantiate a new Workbook.
        Workbook workbook = new Workbook("Sample.xlsx");

        //  Freezing panes at th cell G7
        workbook.getWorksheets().get(0).freezePanes(6,6, 2, 3);

        //workbook.getWorksheets().get(0).unFreezePanes();
        // Saving the file
        workbook.save("frozen.xlsx");
        System.out.println("Rows and columns freezed successfully");
    }
}