Open and Read XLS cellwise, follow steps
1. give the reference of Interop.Excel object from COM tab
2. write following code in your project
Excel.Workbook theWorkbook = ExcelObj.Workbooks.Open(
openFileDialog1.FileName, 0, true, 5,
"", "", true, Excel.XlPlatform.xlWindows, "\t", false, false,
0, true);
Excel.Sheets sheets = theWorkbook.Worksheets;
Excel.Worksheet worksheet = (Excel.Worksheet)sheets.get_Item(1);
for (int i = 1; i <= 10; i++)
{
Excel.Range range = worksheet.get_Range("A"+i.ToString(), "J" + i.ToString());
System.Array myvalues = (System.Array)range.Cells.Value;
string[] strArray = ConvertToStringArray(myvalues);
}