Hi there, @Denise Cl.
I'd also feel the same way when I encountered an error when moving the files. Rest assured, I'm here to help and address your concerns so you'll be able to get back to business in no time.
Beforehand, please know that there are different file types and extensions for QuickBooks Desktop for Windows and Mac. Once verified that your file type is for QBDT for Mac. you'll want to consider using a third-party app for file conversion. I'll show you how:
- Visit this site https://desktop.apps.com/home.
- From the search tab, enter and look for an app.
- Select the app in the list.
Otherwise, feel free to check out these articles here for more details about moving your QBDT file to QBO:
If the issue persists, I'd recommend contacting our QuickBooks Desktop Support Team. This way, you can have a screen-sharing session with them to investigate this matter and find a possible fix for you.
Once everything is all set, here's a great resource that can guide you further in getting started with QuickBooks Online: Getting Started With QuickBooks Online.
Visit me here again in the Community, and keep me posted on your progress with managing your files. I'm determined to help you succeed. Keep safe always.
