Good day, DCBUS.
Thanks for joining us today.
Let's toggle your Windows User Account Controls (UAC settings on and off) to resolve this. This process will reset anything blocking the import feature.
Once done, go back to QuickBooks and import again.
Additionally, you can go to Lists, and then Add/Edit Multiple List Entries to add multiple items.
Please refer to this article for details about importing or exporting MS Excel files.
Reach out to me anytime if you have other questions about QuickBooks. I'm always here for you.