Hi
I have a curious issue that I've never come across with Excel before.
It all started with a column of data (Col A)and a VLOOKUP to find one specific value within that column. When it returned a #NA error I double checked.
So, a physical check of col A shows that the value is definitely there (Row 3719). However, when I filter the column it is not presented as an option with a check box. It's not there. And the VLOOKUP can't find it either.
I've tried a direct test by using
and it returned "Yes". So I'm not losing the plot but neither VLOOKUP, nor filter can find it. I've checked and changed formatting, converted text to columns etc etc but can't figure out why the value isn't shown in the filter. 
Any able to advise me on this phenomenon please?
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