@jmarino715 That's NOT necessarily a BS answer... I spent over 2 hours with a very knowledgeable/helpful hostgator support staff member trying to troubleshoot this issue.
What we found was that it is the plugin causing this problem.
At first we thought the file was getting corrupted due to an uplpoad limit. So we raised the upload limit to 256MB and any files over 50MB were still experiencing corrupted download behavior.
We could tell that this was not an upload issue because ftp was showing the correct filesize as well as the plugin via shortcode displaying the file info.
mikeotgaar is on the money, it IS downloading where this issue is occurring. However, I believe something happens to the file when it is imported or becomes a package. Anything larger than 50MB seems to break the plugin's download functionality. Keep in mind that hostgator told me that downloads are not limited, only uploads.
I have not found a solution to this issue and still am looking, maybe I will find another plugin to replace this one.
Other than this particular issue, I find this plugin to be very useful...