Hi ashleynbox,
Being able to import your information into QuickBooks Desktop from a CSV file is a great way to update your company file quickly. I'd be happy to go over how to do this.
QuickBooks Desktop helps you save time with the import from CSV function. At this time you're able to import your Customers and Vendor lists as well as items and reports. You can follow the steps in this article on how to import these options. I suggest looking into getting a third party app that works with QuickBooks to help you move your information over. You can find some on our QuickBooks Desktop Apps page but make sure to verify it's for the Canadian version as the site has both US and Canada versions of apps.
If importing job labor hours is something you wish to have in QuickBooks Desktop I recommend sending feedback to our developers by following these steps. Help>Send Feedback Online>Product suggestions.
Have a great day!