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convert-a-datatable-into-an-xlsx-workbook-using-the-net-spreadsheet-api-preservi.cs

dt.Rows.Add("Laptop", 10, 1299.99, new DateTime(2023, 1, 15)); dt.Rows.Add("Smartphone", 25, 799.5, new DateTime(2023, 3, 5)); dt.Rows.Add("Tablet", 15, 450.75, new ...