Importing names & addresses from Excel

[#1]

I am building a website that will contain the names and address details and other stuff of around 470 businesses.  Hopefully with a search function.
Pretty adventurous, really for me as I've only ever designed static sites; however, I did manage to install a phpbb forum on one site. (That's probably the most adventurous. (I didn't have a clue what I was doing; just followed the instructions)
Anyway, I have all the data I need in an Excel Spreadsheet and, as a novice to web databases, I presume I'm right in thinking that I do not need to re-type these details (or even copy/paste) into 470 separate web pages.
I've heard the terms CGI; php; Perl; mysql; etc., and asp, although I gather that PN doesn't support asp and I know about FTP'ing to my cgi server, but that's about it.
I would welcome someone pointing me in the right direction as to whether I could be capable of doing it the 'proper' way.  Or even somewhere that offers and idiot's step-by-step guide.
Great Forum guys, keep it up.

[#2]

You will need to write some PHP code to import the data from the file and import it into your MySQL database (you are using a database for this?).
Reading .xls files can be difficult for a novice so save the file as a .csv file and read up on the php functions for reading csv files - fgetcsv().
Or just google for reading csv files with php.
Or search for php based CRM systems (Customer relationship Manager) which might save you a lot of coding. You might find something suitable on www.hotscripts.com

[#3]

The best way depending on your knowledge is to export it as XML as its then in a format as a database and can be used by most programing languages. There is old fashioned text of coarse.
what data are you using as I am thinking Data Protection Act

[#4]

He already stated it's business addresses, so the Data Protection act doesn't apply.
B.

[#5]

Thank you for your starters for 10!
Diving into the deep end comes to mind.
I'll have a delve around and see how it goes; after all, if don't try it you never learn it.
Thanks again
Funseeker