Set up spreadsheet to collect data entries from a webpage

General information for the business: We are a Takeaway Delivery Business
Industry: Food and Beverage
Description of excel work: I am assuming this is possible...

I have a spreadsheet that I have made which tracks sales in my business.

Currently I have to enter the details for each sale manually, I would like to collect this data automatically from an admin page on our website.

The data required would be as follows...

Order Number
Restaurant
Price

This is available from an admin page which is basically a list of orders, clicking a link on an order opens it up to reveal further information, this is not essential but would also be useful and is...

Order Time
Post Code
Payment Type

That's about it I think. I will attach a copy of the spreadsheet, I cannot allow access to the webpage at this stage but obviously will when a Proposal is accepted
Extra notes: