Advise using CVI and excel

Hi RobertoBozzolo,

I saw you gave a lot solutions of the CVI in the forum. i met a question of using the CVI. Can you give me some advises?

i use the cvi to send a string to the Excel for calcul the value. For example, i use this :

ExcelRpt_SetCellValue (ExcelWorkSheetHandle, "B3", ExRConst_dataString,"=5*3+SIN(30)"); 

And then i got a resualt of the calcul valres = 14.01 with the after code:

ExcelRpt_GetCellValue (ExcelWorkSheetHandle, "B3", ExRConst_dataFloat, &valres);

But the condition is i have to install the Microsotf Excel in the windows first. And then i can use the CVI COM to call the Excel  to deal with my formula (Microsoft Excel 9.0 Object lib AND Excel Report).

So, for the PC which didn't install the Excel, what can i do for my calcul string like "=5*3+SIN(30)" ??? Can someother lib replace the Microsoft Excel 9.0 Object lib?

Thank you so much!