The Ultimate Helper Framework

Question

I'm working on the ultimate helper framework. Useful classes such as: Excel (read/write) Cryptography File formatting (and size conversion... eg display acutal megabytes instead of xxx,xxx,xxx bytes) An entire FTP class A SQL helper class And multiple text utilities I am looking for more ideas for this ultimate class... the excel class isn't as good as it could be and I've been scouring the internet for more information or examples of using Excel (without Office installed) Anyone want to hook me up??