époque à Unix Timestamp Conversion Excel
=TEXT((G2/1000 + ("1/1/1970"-"1/1/1900"+1)*86400) / 86400,"DD/MM/YYYY HH:MM:SS")
Funny Fish
=TEXT((G2/1000 + ("1/1/1970"-"1/1/1900"+1)*86400) / 86400,"DD/MM/YYYY HH:MM:SS")// convert epoch to date time.
=(((A1/60)/60)/24)+DATE(1970,1,1)