I have downloaded stats for the recently completed 2015 NFL regular season from yahoo.com, cleaned the data, and saved the data in CSV format. The files are located here. If you prefer a github repository, check here. The column headers should be self-explanatory.
You will find seven CSV files, which you can open in Excel or Google Sheets:
- QB: quarterback data.
- RB: running backs.
- WR: wide receivers.
- TE: tight ends.
- K: kickers. I have broken out attempted and made field goals by distance into separate columns for convenience.
- DEF: defensive stats by team.
- ST: special teams stats by team.
Enjoy!
Nathan Brixius 
Helpful files…thanks for posting these. Saves me a ton of work as I prepare for the 2016 season!
Any plans to do this for the 2016 season?
Yes! I will do it over the next week or two.