Please check this calculator

The extension for this file is xlsx can u give me the software for with which it can be operated..because..i am nable to open it.

i am unable to open it

it can be opend in excel

it can be ipend in  ms-office -2007

if u have converter than u can open it in 2003 or previous version of excel

if u delete the last word x in the file name u may open the file.

I have made a few changes.

download it in .XLS format (for MS office 2003)

friend no gave me exactly what i asked , is it working properly or not, pls answere me