How to read from and write to excel sheet with C#:
How to read from and write to excel sheet with C#: using Microsoft.Office.Interop.Excel; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication2 { class Program { static void Main(string[] args) { //Create application object _Application docXL = new Microsoft.Office.Interop.Excel.Application(); //Create workbook object _Workbook workbookXL = docXL.Workbooks.Open(@"C:\temp\test.xlsx", Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); //create worksheet object _Worksheet worksheetXL = (_Worksheet)workbookXL.ActiveSheet; //Write to the cells based on the range values ((Range)worksheetXL.Cells["1", "A"]).Value2 = "aa"