The company file you have selected is customized for (country). This version of MYOB Plus is for use in the United States.

Situation

The company file you attempted to open can't be used by U.S. version of MYOB Plus.

Solution

Be sure the company file you attempted to open is an MYOB Plus company file, and that it's the company file you want to open. If you're sure the file is correct, you'll need to obtain a version of MYOB Plus that is customized for the country mentioned in the message.