// You can change C:\Members.xlsx to any valid path 

// where the file is located.


string connectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;
    FONT-SIZE: 10pt; COLOR: #a31515; FONT-FAMILY: 'Courier New'">Data Source=C:\Members.xlsx;Extended
    FONT-SIZE: 10pt; COLOR: #a31515; FONT-FAMILY: 'Courier New'">Properties=""Excel 12.0;HDR=YES;"""; 
// if you don't want to sho the header row (first row) in the grid

// use 'HDR=NO' in the string


string strSQL = "SELECT * FROM [Sheet1$]";
OleDbConnection excelConnection = new OleDbConnection(connectionString);
excelConnection.Open(); // this 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);

// bind the datasource

dataBingingSrc.DataSource = dTable;
// assign the dataBindingSrc to the DataGridView

dgvExcelList.DataSource = dataBingingSrc;


// dispose used objects

dTable.Dispose()
dataAdapter.Dispose();
dbCommand.Dispose();
excelConnection.Close();
excelConnection.Dispose();