I'm Mapar007, founder and Master Admin of this site.
Languages: Dutch (native), English (well), French (very well)
Programming Languages: mainly TI-Basic, Java, some C#, JS, and Zilog Z80 assembly.
Markup Langs: HTML and XML (but unfortunately no xls)
Secondary school student (4th form)
edit: I am NOT an expert in all these languages. I know much about HTML and TI-basic, but js is too long ago to answer difficult questions, and in C# I am a n00b. Of course, you can ask me what you want, but I'm not certain whether I'll be able to answer your questions.