RE: VLOOKUP
Hi Kat
Thank you for your question. The filter won't affect the range in the Vlookup function.
This means that if you apply a filter to a range of data Excel will selectively hide records in the sheet but the underlying range in used by Vlookup function is not filtered so will include results that the filter is hiding.
You may find you can achieve the result you are looking for using pivot tables rather than vlookup.
Do let me know if you have any further questions.
Kind regards,
Andrew