On Sat, 9 Jan 2016 13:02:58 -0600, Mark Lloyd wrote:

On 01/09/2016 07:40 AM, Paul wrote:
Ken Springer wrote:

As a matter of fact, there's even proof of this culpability in the
default fileview options of "Hide known file type extensions"

IIRC, this problem has been in EVERY version of Windows, and on by default.

I don't think the feature was always enabled by default, but I don't
remember when it started. XP, perhaps?