I have excel file with sheet1 that has a value I need to read on row 2 and column 10. Here is my code.
Excel.Workbook excelWorkbook = excelApp.Workbooks.Ope
Here's a solution that may work better in the case you are referencing objWorksheet.UsedRange.
Excel.Worksheet mySheet = ...(load a workbook, etc);
Excel.Range myRange = mySheet.UsedRange;
var values = (myRange.Value as Object[,]);
int rowNumber = 3, columnNumber = 5;
string cellValue = Convert.ToString(values[rowNumber, columnNumber]);