How to save a value into only one excel`s cell ?

Question

Hello:
I want to write only a value into one excel`s cell , and save the excel file.
I want reserve all other cells` values .
I used NPOI ,it has to read all the value , and save them all into another sheet. It is not i want
How should I do ?
thanks!

Sascha B · Answer

If I understand you right you want this: using Excel = Microsoft.Office.Interop.Excel; Excel.Application xlApp; Excel.Workbook xlWorkBook; Excel.Worksheet xlWorkSheet; Excel.Range range; object misValue = System.Reflection.Missing.Value; xlApp = new Excel.ApplicationClass(); // new Excel Application Class xlWorkBook = xlApp.Workbooks.Open(@ + path 0 false 5  + password  true Microsoft.Office.Interop.Excel.XlPlatform.xlWindows 	 false false 0 true 1 0); // Definations xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(page); // Which Excel.Page range = xlWorkSheet.UsedRange; xlWorkSheet.get_Range( + column + row misValue).Formula =  + value; xlWorkBook.Save(); // Save the data xlWorkBook.Close(true @ + path false); // Closing th excel.workbook xlWorkSheet = null; xlApp.Workbooks.Close(); xlApp.Quit();