Unable to upload excel file again once it is uploaded recently
string OleDBconstring = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties=\"Excel 12.0;HDR=YES;\"";
OleDbConnection OleDBcon = new OleDbConnection(OleDBconstring + "");
OleDBcon.Open();`enter code here`
DataTable objSheetNmDt = OleDBcon.GetSchema("Tables");
DataTable objExcelDt;
objExcelDt = new DataTable();
string sqlquery = "Select * From [" + objSheetNmDt.Rows[0]["TABLE_NAME"].ToString() + "]";//[{0}]
OleDbCommand objCm`enter code here`d = new OleDbCommand(sqlquery, OleDBcon);
OleDbDataAdapter da = new OleDbDataAdapter();
da.SelectCommand = objCmd;
da.Fill(objExcelDt);