For updating (or backdating) a set of positional coordinates from one date to another or for transforming a set of positional coordinates from one reference frame to another, the positional coordinates to be updated or transformed may be listed in an ASCII file as may be created, for example, by NotePad.
Each record in the file must be of the form
LAT,LON,EllipsoidHeight,"TEXT"
where
LAT = latitude in degress (positive north)
LON = longitude in degrees (positive west)
EllipsoidHeight = ellipsoid height in meters
TEXT = descriptive text identifying the point (up to 24 characters allowed between quotes)
Examples:
40.731671553, 112.212671753, 23.456, "Salt Air"
33.35,120.256,-72.6,"Communication tower"
Note that the fields in each record may be separated by blank spaces, instead of commas. The quotation marks around the TEXT are mandatory.
The software will ask you to identify in which reference frame(s) you are working.

Also, the software will ask you for the "from" and "to" dates for either updating the positional coordinates or transforming the positional coordinates.