.XLSX issues

I have an XLSX file that has lots of complicated math and inputs from various sheets etc. and when I open it in LO 5 it doesn’t work. some of the calculations work but most of them don’t, any way to fix this problem?

I’m not the one who created the file, so I have no real idea how it works.

here is a link to the file: https://drive.google.com/file/d/0B2_BBw2VMf2-ZVl5QnJhMjZPWTA/view

Thanks!

On ‘Pocket PC Input’ there is a missing reference for I13, also the file has other link file, surely necessary to test.