[DefaultMember("Item")]

public class PictureCollection : WorksheetElement 

using( var workbook = Workbook.Create( "test.xlsx") )

  {

    // Get the first worksheet. A workbook contains at least 1 worksheet.

    var worksheet = workbook.Worksheets[ 0 ];



    var stream = new FileStream( PictureSampleResourcesDirectory + @"balloon.jpg", FileMode.Open, FileAccess.Read );

    // Add the stream picture in cell A4 and extend it to cell E12.

    var filenamePicture = worksheet.Pictures.Add( stream, "A4", "E12" );



    // Add the filename picture with its top left corner in 15th row and 1st column.

    var streamPicture = worksheet.Pictures.Add( PictureSampleResourcesDirectory + @"balloon.jpg", 14, 0 );



    workbook.Save();

  }