SC -- A launcher for the Public Domain Spreadsheet Calculator
I use the public-domain spreadsheet "sc" for compatibility with other Unix systems. But it's a bit cumbersome to have to start a Terminal window and "cd" to the proper directory, or type a long pathname, in order to look at the contents of one of its files. Hence this quick hack: a few lines from Weather.app and from Draw, to allow you to double-click on spreadsheet files (extension ".pdsc") and run the spreadsheet in a Terminal window.
This doesn't provide anything like a GUI---just an easier way to start the spreadsheet within Terminal. The spreadsheet itself isn't included---you must get that from an archive site.
Instructions:
Standard Release Systems:
1. Type "sc" in a Terminal window, to verify that you have the spreadsheet.
2. Drag SC to ~/Apps.
3. Double-click on 1040.pdsc, and have fun.
Extended Release Systems:
As above, except
1a. Inspect the source, change and recompile as you deem fit.