I'm here to guide you in resolving the task that you're getting in QuickBooks Online.
Have you tried exporting your data? If so, the task that you received reminds you to complete the export process and download it. That way you can have a downloadable file ready whenever you wanted to convert your file to QuickBooks Desktop.
I'll show you how:
Select the Gear icon at the top.
Under Tools, choose Export Data.
Select Get Started.
Select the data to export, then select Continue.
In the Exporting from QuickBooks Online page, select Continue to Download.
I'd be glad to provide additional insight with this task concern.
Since you've already completed the download process and the task is still showing up on your end, I'd suggest logging in to your account through a private browser. That way we can verify if the issue has something to do with your browser.
Here are the different keyboard shortcuts to open a private browser:
Google Chrome: press Ctrl + Shift + N
Mozilla Firefox: press Ctrl + Shift + P
Internet Explorer: press Ctrl + Shift + P
Safari: press Command + Shift + N
If the task is no longer showing on your dashboard, you can go back to your regular browser and clear its cache.
However, if the issue persists after switching to a private browser, I'd suggest reaching out to our Customer Care Team. They have the necessary tools to work with you to find out what exactly may be causing this issue.
You've got me here if there's anything else you need. I'll be around to help you out. Take care.