Hi BMarcil_Inclusive,
Having the ability to import certain information is great and helps keep things simple when you need to enter a lot of transactions or items. For help with this kind of matter, I recommend getting in touch with our phone support team. With the help of a screen share session and other tools, an agent will be able see what's happening when you're trying to import and work with you to achieve your goal. Knowing what error message you're seeing will greatly help with resolving this issue.
Get in touch by calling 1-877-772-9158. Pro and Premier agents are available 24 hours a day and Enterprise agents can help from Monday to Friday between 9 a.m. and 8 p.m. EST. Review our support policies here: Intuit QuickBooks Desktop software support policies
For more information about importing and exporting, read the Import/Export Overview
Have a great weekend. :)