[AccessD] Strange bug

I have "malformed string" in a comma delimited file.  The record in question
has valid data, but out in the middle of the string has > 3000 spaces and
InStr() cannot find any spaces out in the area of the string where these
3000 spaces reside.
 
I'm baffled.
 
I need to find this string (in a 3 million line file) and not copy just that
line, but I can't sense the line.
 
Weird.
 
John W. Colby
Colby Consulting
www.ColbyConsulting.com