Hi @richlodge5
Here is the BAAAM Date formula: =((A2/1000)/86400)+(DATEVALUE("1-1-1970")-DATEVALUE("1-1-1900"))
Make sure you replace the 'A2' to reference the the date cell you are trying to change. Also make sure that the raw (reference) date column (in this example 'A2') is formatted as general.
The new date column will need to be formatted as 'Custom' and then you should make it: m:dd:yyyy AM/PM.
It can get a bit wonky sometimes so if anyone else has a better way please share.
Thanks,
Manny