XLSV

Main feature:
-Making csv and xlsx formatted file.

Things this app can do:
-Writing a xlsx file including string, numeric, some mathematical functions.

Things this app can't do:
-Writing cell style data on a file.
-Writing a xlsx file supporting all functions.

sourcecode:
https://github.com/northwindapps/xmlProject
https://github.com/northwindapps/swiftCalculater