R/from_excel_to_posixt.R
from_excel_to_posixt.Rd
transform the excel numeric date format into POSIXct
from_excel_to_posixt(vec, origin = "1904-01-01")
a vector
a date-time object, or something which can be coerced by as.POSIXct(tz = "GMT") to such an object.