Use Streaming Excel for Writing

Updated: Aug 28, 2026
package com.northconcepts.datapipeline.examples.cookbook;

import java.io.File;

import com.northconcepts.datapipeline.core.DataReader;
import com.northconcepts.datapipeline.core.DataWriter;
import com.northconcepts.datapipeline.csv.CSVReader;
import com.northconcepts.datapipeline.excel.ExcelDocument;
import com.northconcepts.datapipeline.excel.ExcelDocument.ProviderType;
import com.northconcepts.datapipeline.excel.ExcelWriter;
import com.northconcepts.datapipeline.job.Job;

public class UseStreamingExcelWriting {
    
    public static void main(String[] args) {
        DataReader reader = new CSVReader(new File("example/data/input/credit-balance-01.csv"))
                .setFieldNamesInFirstRow(true);

        ExcelDocument document = new ExcelDocument(ProviderType.POI_SXSSF);
        DataWriter writer = new ExcelWriter(document).setSheetName("balance");

        Job.run(reader, writer);
        
        document.save(new File("example/data/output/credit-balance-06.xlsx"));
    }

}

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