I have downloaded stats for the recently completed 2012 NFL regular season from yahoo.com, cleaned the data, and saved in CSV format. The files are located here. The column headers should be self-explanatory.
There are seven files:
- QB: quarterback data.
- RB: running backs.
- WR: wide receivers.
- TE: tight ends.
- K: kickers. For the yardage columns, the first entry indicates FG made, the second attempted. So 4-5 means 4 made out of 5 from the distance range.
- Def: defensive stats by team.
- ST: special teams stats by team.
I have also provided a spreadsheet that combines all of the above.