Joe,

What column is being averaged?

Presumably column B is the date/time?

--

HTH

RP
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"Joe K." <Joe wrote in message
...

I have a spreadsheet that has 14,000 rows with numerous fields.

The data is sampled every minute which is A field in the spreadsheet.

I would like to write a formula that would
average the data using Monday - Friday and 8AM - 7PM for columns B - AC.

Thanks,