Convert from Epoch Unix Timestamp format milliseconds to readable date (human date).
From format seconds:
=(D2/86400)+DATE(1970,1,1)
From format milliseconds:
=(D2/86400000)+DATE(1970,1,1)
And format cell to a new format:
References:
- https://unixtime.org/
- https://www.unixtimestamp.com/
