一個簡單產生Excel檔案格式的java包。

    作為學習Excel 2003 Xml檔案格式的過程，實現了一個Excel xml writer,可以產生Excel xml file.基本上提供了Excel 2003 xml檔案格式完整支援，列表如下：
    Row
    Cell
    Styles(Font,Alignment,Interior,NumberFormat)
    NamedRange
    Formula(not complete yet).
    Condition Formatting.

    一小段示範代碼，設定A1到E5的單元個內容：
    import com.dyz.xfe.*;
    /**
     * @author dengyunze
     *
     * TODO To change the template for this generated type comment go to
     * Window - Preferences - Java - Code Style - Code Templates
     */
    public class TestMain {

     public static void main(String[] args) {
          Workbook book = new Workbook("d:/excel.xml");
          Worksheet s1 = book.getWorksheet(1);  
           book.defineRange("range1",1,1,1,4,4);
          for( int i=1; i<5; i++ ) {
              for( int j=1; j<5; j++ ) {
                  Cell cell = s1.getCell(i,j);
                  cell.setValue(i*j);
              }
           }
          book.close();
      }
    }