There is(or used to be) an Excel Add-on you can install for pre 1900
dates but in its raw form versions of Excel up to 2007 did not
understand dates before 1 Jan 1900. Dates were stored internally as the
number of days since 1 Jan 1900. If your Excel is working for dates
before 1 Jan 1900 check your installed add-ons or which tell us which
version of Excel are you using.
Brian Kelly
On 12-Jun-17 10:35 AM, Pete Beatty wrote:
Michele, your current tip contains the following: "Excel can't handle pre-1901 dates
so you will have a problem sorting by columns."
Excel Does not have a problem with dates prior 1901. It can handle all formats
of dates. I have several spreadsheets with some having thousands of records
with dates ranging between 0900 and present. I can sort, and filter all records
correctly.
Perhaps you are referring to dates with prefixes. We sometimes think items such as "bef"
Or "c" as dates. Technically they are not components of a date. When you add them to a
date, they are interpreted as a character string, not a date. As a character string, the entries
are not sorted as a date.
If this is the case, then excel can still properly sort. You may have to define
a format, a relatively simple process, or perform a simple cleanup.
Pete
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