How to create a database based on emails. mail with orders?

Question

Parsing

There are 10,000 emails with orders in the gmail mail account. All letters contain fields with the customer's contacts and the composition of the order. It is necessary to:
- filter letters with orders (not only orders in the account)
- create a table (database) based on them, which will contain all the data from the order (name, email, order composition, etc.).
How to do it? What toolkit?

Answer 1

regexp

Answer 2

www.gmail-backup.com
Well, with regular expressions, I think there will be no questions?
Well, just in case:
regexr.com/38ofq
regexr.com/39c7p
regexr.com/31dth
And so on.