Please accept our apologies. The zip archive uploaded on May 9, 2013 was tested locally but was corrupted during the transfer. A new file was uploaded today (May 14) at 11am Pacific time and has been tested.
If you uploaded the MC3 Week 2 data file before May 14, you will want to get the new file.
Week 2 zip file was corrupted - is fixed now
If you uploaded the MC3 Week 2 data file before May 14, you will want to get the new file.