Error: Specified argument was out of range of valid values

Hi Ren,

Thank you for contacting me, I have sent the file using the link you provided. I hope you can help me soon as this is something I'm doing for work and it has already taken up quite a lot of my time.                                                                                                                                                               Am just writing after being contacted by one of your colleagues and the problem is solved! It seems there was one element (which I wasn't using anyway but put aside just in case) which caused all the trouble.  Thanks again for your help.