If you want to read an Excel file in C#, you have several options to choose from. One of them is to use a third-party library, such as Linq-to-Excel, Bytescout.Spreadsheet or IronXL.Excel. These libraries allow you to access the data in an Excel file without using Interop or installing the Access Database Engine.
On this topic I will use very very basic to help you can do it, not need us any third party library, Let's start
Read Excel File in C# is easily do it. Here I have one function ReadExcelFile with two params:- Path (string)
- SheetName (string)
Using OleDbConnection , OleDbCommand for read it
This function return Datatable contains row and columns values in excel
Source code
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/******************************************************
* Author: ViLH / Zidane (huuvi168@gmail.com)
* Last Modified: 2015-10-15
* ***************************************************/
public static DataTable_ReadExcelFile(string path, string strSheetName)
{
string connectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;";
connectionString += "Data Source=" + path + ";";
connectionString += "Extended Properties=" + "\"Excel 12.0;HDR=YES;\"";
// string connectionString = "provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + "
// ;Extended Properties=Excel 8.0;HDR=NO;"; cannot!!!
// YES: dont read header
// NO: read header
// if you don't want to show the header row (first row)
// use 'HDR=NO' in the string
// string strSQL = "SELECT * FROM [Sheet1$]";
string strSQL = "SELECT * FROM [" + strSheetName + "$]";
OleDbConnection excelConnection = new OleDbConnection(connectionString);
excelConnection.Open(); // This code will open excel file.
OleDbCommand dbCommand = new OleDbCommand(strSQL, excelConnection);
OleDbDataAdapter dataAdapter = new OleDbDataAdapter(dbCommand);
// create data table
DataTable dTable = new DataTable();
dataAdapter.Fill(dTable);
dTable.Dispose();
dataAdapter.Dispose();
dbCommand.Dispose();
excelConnection.Close();
excelConnection.Dispose();
return dTable;
}
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