Output of ls command on Cygwin

what does the '+' sign stand for on the output of ls command on cygwin?

-rw-------+ 1 milhan None  146783 Jun 19 12:10 schedule.pdf
-rw-------+ 1 milhan None     320 Aug 15 17:14 current.txt
-rw-------  1 milhan None   24576 Dec 28  2008 fdfd.txt

Basically it means there are permissions attributes that do not fit or "exceed" the ability of traditional unix files systems - in this case a windows acl is the cause

Use 'getfacl', 'setfacl', 'cacls' to access them.

thanks, that was helpful.