I downloaded the data from tradingview which was exported csv format but the time format is unreadable. please see below.
1502942400
1502949600
1502956800
1502964000
1502971200
1502978400
1502985600
1502992800
1503000000
How can I change it to yyyy / mm / dd hh : mm format by excel ?
Grateful if you advise. Thanks a lot.