Tracking down and erasing circular references in Excel

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Project Budget (USD)
$30 - $250

Project Description:
I have a massive Excel file, where I for some mysterious reason gets hundreds of circular reference errors. I need to erase the errors (allowing for circular references slows the file down heavily), and though I am skilled in Excel, I can not find the problem.

Additional Project Description:
02/19/2013 at 14:48 CST
I have had plenty of interest, the file is now being looked at by my preferred bidder. If he can solve it, I'll award the job to him. Impossible to reply to everyone, I am sorry.

02/21/2013 at 3:01 CST
Adding the file here...

Skills required:
Qualifications required:
us_eng_1 US English - Level 1
Additional Files: til+freelancer.xlsx
Hire vw7884154vw
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