How to Fix QuickBooks Error 6000 308 When Opening a Company File

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QuickBooks is a trusted accounting solution for small to mid-sized businesses, but sometimes errors can interrupt your workflow. One common issue users face is QuickBooks Error 6000 308, which occurs when trying to open or access a company file.

This error can be frustrating—especially if you need to access financial records urgently. But don’t worry: in this blog, we’ll walk you through what causes the error and how to fix it step-by-step. Need immediate help? Call QuickBooks Support at 844-753-8012.

What Is QuickBooks Error 6000 308?

QuickBooks Error -6000, -308 usually appears with the message:

“An error occurred when QuickBooks tried to access the company file.”
Error code: -6000, -308

This is part of the 6000-series errors in QuickBooks, which generally indicate issues opening company files due to file corruption, improper settings, or security restrictions.

Common Causes of QuickBooks Error 6000 308

Corrupted or damaged company (.QBW) file
Incorrect or outdated QuickBooks configuration files (.ND or .TLG)
Insufficient folder permissions to access the file
Firewall or antivirus software blocking QuickBooks
QuickBooks not updated to the latest version
Multiple users trying to open the file in single-user mode

If you're not sure which of these is the cause, feel free to call 844-753-8012 for a quick diagnosis.

How to Fix QuickBooks Error 6000 308

Step 1: Update QuickBooks to the Latest Release

Open QuickBooks.
Go to Help > Update QuickBooks Desktop.
Click Update Now, then select Get Updates.
Restart QuickBooks and try opening the company file again.

Still seeing the error? Move to the next step.

Step 2: Rename .ND and .TLG Files

The .ND and .TLG files help QuickBooks open your company file on a network. If they’re damaged, you’ll need to reset them.

Steps:

Close QuickBooks.
Navigate to the folder where your company file is located.
Look for files with the same name as your company file but with .ND and .TLG extensions.
- Example: CompanyFile.qbw.nd and CompanyFile.qbw.tlg
Right-click and rename each by adding .old at the end (e.g., CompanyFile.qbw.nd.old)
Reopen QuickBooks and try to open your company file.

If renaming doesn’t work, call 844-753-8012 for advanced file repair options.

Step 3: Move the Company File to a Local Drive

Sometimes, file access issues stem from problematic network paths.

Try this:

Move the company file from the network drive or external device to your local desktop.
Open QuickBooks and navigate to File > Open or Restore Company > Open a company file.
Select the file from the new location.

If the file opens, the issue may be with your network setup.

Step 4: Run QuickBooks File Doctor

QuickBooks File Doctor can automatically detect and repair file damage.

To use it:

Download and install the QuickBooks Tool Hub from Intuit’s official site.
Open the Tool Hub and go to Company File Issues.
Click Run QuickBooks File Doctor.
Choose your company file and let the tool scan and fix errors.

Still facing the issue? Contact QuickBooks Support at 844-753-8012 for assistance.

Step 5: Check Folder Permissions

QuickBooks may not be able to access the company file if the folder permissions are too restrictive.

Right-click the folder where your company file is stored.
Select Properties > Security Tab.
Make sure all users (especially "Everyone") have Full Control.
Apply changes and try opening the file again.

When to Call QuickBooks Support

If you’ve tried all the above steps and QuickBooks still won’t open your company file, it may be a deeper data issue or require expert file repair.

Call QuickBooks Support at 844-753-8012 for immediate and professional help.

Preventing Error 6000 308 in the Future

Always create backups before making changes
Keep QuickBooks and Windows up to date
Avoid manual edits to company files or related files
Ensure your firewall and antivirus allow QuickBooks processes
Use a stable, properly configured network setup for multi-user access

Final Thoughts

QuickBooks Error 6000 308 can be a headache, but it’s often fixable with the right steps. Whether it's a damaged file, permission error, or network issue, you now have a roadmap to resolve it—and if you need a hand, help is just a phone call away.

Need assistance? Call QuickBooks Support at 844-753-8012