Get data from web to my worksheet with the help of a code.

Hello code experts.
I am trying to get the data from the web from a particular web site into my excel sheet. I can do this manually. If it is possible to write a code and get the same result it would just be cool. Can anyone tell me whether it is possible.?
I have to copy the ID number from my workbook and paste it on the site in a particular box and it will display the result. Then there is an option in the page to download the data in an xls format.
I want to insert a button in the sheet so that when I press the button to run the code, it should open that particular site, copy the ID's from the workbook and paste it in that particular box, run the button on the web to get the result and get the data in xls in my workbook.