public static void Run()
{
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Specify your desired matrix
int rowsCount = 10000;
int colsCount = 30;
var workbook = new Workbook();
var ooxmlSaveOptions = new OoxmlSaveOptions();
ooxmlSaveOptions.LightCellsDataProvider = new TestDataProvider(workbook, rowsCount, colsCount);
workbook.Save(dataDir + "output.out.xlsx", ooxmlSaveOptions);
}
}