How to fix faulty 3dm file?

 From:  Brian (BWTR)
1604.10 In reply to 1604.9 
Thanks Michael.
I think I went through very single thing I could originally.
I mean everything-- as you described---I had hoped I was learning!
It's late in the day any I am really frustrated,

Maybe I need to wait till Friday and start again from scratch?
(Or Monday week!)

However could you, please, doubly confirm that this was you response to that sentence I queried.(I am having a thick day maybe)