negative dates in excel

Giganews Newsgroups
Subject: negative dates in excel
Posted by:  peekabeaux
Date: Mon, 6 Aug 2007

I have a spreadsheet  that must have been made from some sort of database.
One of the fields is date of birth. Since Excel does not work with dates
earlier then 1/1/1900 (i'm using 2003) one of the dates is listed as -127.  I
am moving this data back into a database ( Access) and need a valid date.  I
am assuming that since 1/1/2000 - 127 = 8/27/1999 it would only make since
that 1/1/1900 - 127 = 8/27/1899. Is that how excel determines what neg number
to plug in?  Does anyone know how to reverse that neg number to get a date?