What to open .pub with?

[macx]

Tried everything I've got, just the usual stuff, nothing opens
a .pub attachment I got from a friend.

Thanks!!

 

[CCT]

Gotta do some looking or just ask your friend.

http://www.file-extensions.org/pub-file-extension

 

[macx]

Thanks!

I had done the usual search but hadn't come up with anything at all.

Learn something every day!

Thx again