2(two) 1-User License on the same QuickBooks file?

I am planning to set up QuickBooks in my office. I will put it on one computer now, so I need a 1-User License. My Question is this: Later when I buy another computer and buy a 1-user license for that one, can those two now work simultaneously on one QuickBooks file? Or will I need a 2-user license for... show more I am planning to set up QuickBooks in my office. I will put it on one computer now, so I need a 1-User License.
My Question is this: Later when I buy another computer and buy a 1-user license for that one, can those two now work simultaneously on one QuickBooks file?
Or will I need a 2-user license for that?
Thanks
4 answers 4