Read code in add-in - .xll - Excel 2003

Hi it is VBA.

You can view the editor by clicked tools > Macro > Visual Basic Editor

You can get a foundation on what you want by recording a macro. This will create some of the vb for you to work with.

This is quite a useful site if you are a beginner at vb

http://www.angelfire.com/biz7/julian_s/julian/julians_macros.htm

thanks rorya.
c++ or c# isnt it?
I heared that you can write one c# too. - please confirm

secondly how do I check if I have source code or not.
I can see a dll and dna? file in the same folder.
Are you aware of ERXML.xll - (add-in) - just checking if its something commonly used or writtin in-house.

Many thanks

thanks