How to Resolve the QuickBooks Company File Not Found Error Quickly When QuickBooks can't find your company file, it may be due to a network issue, a corrupted file, or incorrect file location. Check your file path and network connection to ensure the company file is accessible. Running QuickBooks File Doctor or restoring a backup can help fix the issue and restore access to your file. https://ekonty.com/blogs/18166/QB-Error-Code-6123