Unknown file

Hello, every time when I press the Save button in the Rhino program near the project is created here such file:
[URL=http://fastpic.ru/][/URL]
Earlier I didn’t notice him…

Hi Russlav - please see

http://docs.mcneel.com/rhino/5/help/en-us/index.htm#options/files.htm?Highlight=3dmbak

-Pascal

Has understood, I thank!