Where to start - need external app to update spreadsheet
 

I want to develop my own golf spreadsheet that can compute a golf handicap.
If you don't know what that means it doesn't matter...I'm essentially wanting
to enter new data via an application(s). Essentially there would be 2 types
of data to be entered new scores and new courses each on a separate
worksheet. I'll want to create options in the app to analyze the data (eg,
compute the handicap). Can anyone point me somewhere that can show me how
this is done? Not big on PC app programming but it can't be that hard. I do
have an appx 4 yr old version of Studio.net but have never used it.

Any help is much appreciated.

Thanks!