i'm an ERP developer very new to web developing and am trying to find the right enviroment.

Overall picture:
I will need to allow multiple companies to log in and upload a flat file (comma delimited probably) to our web server.

Then, I would need to run each file through some complicated logic to determine risk factors. Currently, I have this logic in macros in Excel.

Then, I would fill in a template (.pdf or .doc) and email it back to the originating company within a few days(reason stated below).


Other Requirements
1) it will be a secure site - login necessary
2) track how many times a company uploads the file for billing purposes
3) I would like to offer 2 different options to subscribers - an On Demand (lite version of report) and full version in .pdf/.doc. Perhaps have a page where the company could upload their file and receive a condensed(lite) version immediately on screen and get their full version a few days later via email and/or snail mail.
4) perform some minor error checking/validation of the flat file to make sure it's in the correct format.

I think those are the major points.

 thanks alot.

rp