Woogles achieved a successful Kickstarter in October last year, and was created by a team led by César Del Solar, one of the top North American Scrabble players. The Woogles team is also made up of several other top players.
The repository contains cel_2-45.txt, the master CEL list, which has words ranging from 2-45 letters. cel_2-15.txt contains subsets of CEL by word length, from 2-15 letters. cel_16-21.txt contains subsets of CEL by word length, from 16-21 letters. cel_2-21.txt contains subsets of CEL by word length, from 2-21 letters. cel_22-45.txt contains subsets of CEL by word length, from 22-45 letters.
The 2-15 folder contains subsets of CEL by word length, from 2-15 letters. The 16-21 folder contains subsets of CEL by word length, from 16-21 letters. The a-z folder contains subsets of CEL by starting letter, from A-Z, 2-15 and 16-21. More subset lists can be generated if desired. In the future, these lists will be updated to stay consistent with cel.txt.
The working spreadsheet is public. It currently contains 3 main tabs. CEL is the current working list from 2-15 letters, CEL 16-21 is the current working list from 16-21 letters, and CEL 22-45 is the current working list from 22-45 letters. Other tabs: 2s is just 2 letter word selection, 3s is 3 letter word selection, and movies is another list described below. The spreadsheet can be viewed at: https://docs.google.com/spreadsheets/d/1N-LfFbuuVA176f6pI8oTHYtpUGOy7t2i_ovsCTalq4A/edit?usp=sharing