QB Issue Resolution:
Double click the .dmg file to mount it, once open drag your company file to documents>quickbooks and open from there.
Resolution for Issue 'How can I restore a .dmg file to Quickbooks 2014?' available: Yes (Solved).
Source: Intuit Community forum.
How can I restore a .dmg file to Quickbooks 2014?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.
Support for Quickbooks FileQuickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!
Error Recovery for Quickbooks File [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.
Additional Support Options: