Game by Game Shot Charts 2013: raw data in Excel updated through the end of the 2013 MLS season. Additionally, there are some fun sheets in the file where you can pick a team and look at its shots data.
Note: In the “Shot Data” and “shotlocations13” files, the Home and Away team names are not completely uniform. Because of changes to how mlssoccer.com recorded team names, I have added two columns to the far right called hteam and ateam with uniform team abbreviations.
For home/away splits, check out the following Excel files!