You are getting a set of excel sheets.
These are to get exported into csv with simplifications and this is simple.
Then these cvs are to get imported into a web database. Again this is very simple.
There are about 40 sheets (small size)
These are processed one by one.
You get the excel sheets and you process them into csv in your computer.
Then you load the csv's one by one into a web database - this is a one click import since the web database is itself an csv database.
Again these are processed one by one.