IExcelWriter Interface

var filter = FilterBuilder.Create().Build();
var schools = dataApi.Search(DataObjectApiQuery.For("School").FilterBy(filter)).Data;
using(var stream = new MemoryStream())
{
    using (var writer = Writers.GetExcelWriter())
    {
        writer.Open(stream);
        var sheetWriter = writer.AddSheet("Sheet1");
        var row = 0;
        foreach(dynamic school in schools) {            
            sheetWriter.Write(row, 0, school.Name);
            sheetWriter.Write(row, 1, school.Description);
            row ++;
        }       
    }   

    // Note: MUST move the cursor to the beginning of the stream before storing.
    stream.Seek(0, SeekOrigin.Begin);
    var documentInfo = documentApi.Create("Sample.xlsx");
    documentApi.Store(documentInfo, stream);
}