Creating formtable using Joes data

[Guest mcjoint]

I've been fumbling around with a system in Excel for a while now, based on, among other things, Poisson calculations. But now I'm stuck..... I've downloaded data from football-data.co.uk. And I'm using this data to create my leaguetable. I've got no problem counting all games played by each team, and converting them to a leaguetable. My problem is: How do I use the same data to create a formtable ? My formtable should only include the 6 latest games played by each team. How do I do that ??