You're most welcome, @ME-. Allow me to chime in on this conversation and answer your further queries about migrating from QuickBooks Desktop (QBDT) to QuickBooks Online (QBO). 

The information provided by my colleague above is about manually converting your data without using any tools as QuickBooks doesn't support migrating multicurrency transactions.

On the other hand, if you persist to use a third-party app, you can bypass the manual entry process since it'll help you convert your data seamlessly. As I am not allowed to recommend any, I can provide you with this link to find the best third-party app: Apps help QuickBooks run better. You just have to enter some keywords to maximize the results and check on the customer's review of the app for better recommendations.

Additionally, here's an article that'll tell you what to do to make sure your data is being transferred properly from QuickBooks Desktop to QuickBooks Online: What to do after you move from QuickBooks Desktop for Windows or Mac to QuickBooks Online.

Should you need further assistance in migrating your data, feel free to notify us by leaving a comment below. It's always our pleasure to make sure you'll transfer your data successfully and provide assistance whenever needed. Keep safe and have a good one.