using this format https://www.gpsbabel.org/htmldoc-development/fmt_unicsv.html
in the universal csv format, we can use
lat
, long
, alt
, time
, date
, temp
, speed
use below for the time and date fields. with the gpsbabbel gui, the utc offset can also be specified
to get utc_d and utc_t, use `=TEXT(DATE(MID(A1,1,4),MID(A1,6,2),MID(A1,9,2)),"yyyy/mm/dd")