Hello there, @Slumlord.
Thank you for posting in the Community. Allow me to share some information about converting data from QuickBooks Desktop Pro 2011 to Quickbooks Desktop Pro 2017.
You may encounter this issue due to one of the following reasons:
- The company file name includes special characters.
- The backup was restored over an existing company file.
- The backup was restored from a USB flash drive to a network drive.
- The file you are trying to restore isn't an actual backup file.
- The company file is damaged.
To begin, let's make sure that your QuickBooks Desktop is updated. Additionally, when you download the file, you're asked where to save or map it. Please make sure to choose a file location you can easily remember.
After that, I recommend checking this article for the troubleshooting steps to get this resolved: Restore Failed.
However, if you're unable to find your file, you can also check the Restore your file article, to locate where you saved it. After that, please try again to convert your old company file to a newer version.
For additional help, you can also reach out to our Technical Support. They can initiate a screen sharing session, to help you get to the resolution quickly.
Here's how you can reach them:
- Go to https://help.quickbooks.intuit.com/en_US/contact#.
- Select your QuickBooks product at the top right.
- Select a topic.
- Click the green Get Phone Number button to see the support number.
Let me know how it works out. I'll be here if you need further assistance with converting QuickBooks Desktop Pro 2011 company file to 2017. I'll be happy to help you further.
