Export Large Excel File to CSV in C#. In order to better understand how you can export large Excel file in C# see our Knowledge Base topic:https://kb.aspose.com/cells/net/how-to-export-large-excel-file-to-csv-in-c-sharp/

Export Large Excel File to CSV in C#.cs

using System;
//Add reference to Aspose.Cells for .NET API
//Use following namespaces to Export excel file to CSV
using Aspose.Cells;

namespace ExportLargeExcelFiletoCSV
{
    class Program
    {
        static void Main(string[] args)
        {
            //Set Aspose license before exporting Excel file to CSV file format
            //using Aspose.Cells for .NET
            Aspose.Cells.License AsposeCellsLicense = new Aspose.Cells.License();
            AsposeCellsLicense.SetLicense(@"c:\asposelicense\license.lic");

           
            //For optimized memory usage for large excel file use 
            //MemoryPreference MemorySetting option
            LoadOptions OptionsLoadingLargeExcelFile = new LoadOptions();
            OptionsLoadingLargeExcelFile.MemorySetting = MemorySetting.MemoryPreference;

            //Create an instance of Workbook class to load input large excel file
            //Also pass the MemoryPreference load options to the constructor
            Workbook ExportExcelToCSVWorkBook = new Workbook("Large_Excel_To_Export.xlsx", OptionsLoadingLargeExcelFile);

            //Save the exported output file as CSV format 
            ExportExcelToCSVWorkBook.Save("Exported_Output_CSV.csv", SaveFormat.Csv);

            
        }
    }
}