How and through what to write code for the site directory, and how to organize the database?

Question

Joomla

How and through what you can write this directory.
The file 1.txt is given in which each line is one product. The division is in progress # The order is the same everywhere. let's say:
#0001#Chair#1#200000#
Well, the first is the product code, 2 - name, 3 - quantity, 4 - price
You need to write a directory that will process this file, I make the site in Joomla CMS.
And that this file could be updated later, by replacement or through the database.
Do you need advice on how and through what it can be done?