From jeyner w. on Apr 10, 2012:
I have a large amount of books about vba and no one have code like the ones you put here or in mrexcel challenge how come, is a secret books,I want to study with you.
Getting Excel to write the code
Understanding the Excel object model
Writing a User Defined Function (or UDF)
Creating an add-in
The power of Variants
Digitally signing code
Accessing embedded or linked objects
Using VBA to work with multiple sheets simultaneously
Associate Excel objects and OnTime and OnKey methods with subroutines with arguments
Decode mnemonics (constant values)
Using the Run method of the application object to pass arguments by reference
Object Oriented Programming -- Find the center of a circle