(Java) Write utf-8 CSV Compatible with Excel

See more CSV Examples

A CSV containing non-English characters that is saved using the utf-8 character encoding must include a BOM (also known as a preamble) if it is to be correctly loaded into Excel. See https://en.wikipedia.org/wiki/Byte_order_mark

This example shows how to save the CSV to a file using utf-8 with a BOM.

Note: This example requires Chilkat v9.5.0.93 or later.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example program loads a file (japanese.csv)
    // that contains this content:
    // 
    // year,color,country,food
    // 2001,red,France,cheese
    // 2005,blue,"United States",hamburger
    // 2008,green,Italy,pasta
    // 1998,orange,Japan,sushi
    // 2010,silver,"",""
    // 

    CkCsv csv = new CkCsv();
    csv.put_HasColumnNames(true);
    boolean success = csv.LoadFile2("qa_data/csv/test.csv","utf-8");
    if (success != true) {
        System.out.println(csv.lastErrorText());
        return;
        }

    // To save the CSV using utf-8 with a BOM/preamble, 
    // add "EMIT_BOM" to the UncommonOptions.
    // (This feature was added in Chilkat v9.5.0.93)

    csv.put_UncommonOptions("EMIT_BOM");
    success = csv.SaveFile2("qa_output/test.csv","utf-8");
    if (success != true) {
        System.out.println(csv.lastErrorText());
        return;
        }

    System.out.println("OK, try to load the CSV in Excel to see if the non-English chars are correct.");
  }
}