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QuickBooks error 6123, 0 occurs when the user tries to open, upgrade or restore a company's file. This error arises with a pop-up display message as “We are sorry, QuickBooks fails to open your company file.” Although this is not a common error, and sometimes the users can face challenges while solving the error. That's why we are here to help you. In this blog, we are going to provide you with all the necessary steps and information about how to resolve QuickBooks Error 6123. So, stay tuned and read this informative blog post till the last word.

What are the Reasons Behind QuickBooks Error 6123, 0?

Let's understand the possible reasons due to why the QuickBooks Error 6123, 0 arises. 

  • When the user tries to restore a company's file from the external storage device. 

  • When the internet connection is unstable.

  • The QuickBooks company data file is damaged or corrupted. 

  • The background running antivirus software is disabling the QuickBooks to open the file. 

  • PC's window is damaged or outdated. 

  • Using an outdated version of QuickBooks desktop application. 

How to Fix QuickBooks Error Code 6123, 0?

So, once you are cleared with all the possible reasons why the QuickBooks Error Code 6123, 0 arises, let's look at the solutions you can easily follow step by step for solving the QuickBooks Error Code 6123, 0. 

Solution 1: Install and Run the QuickBooks Tool Hub

The QuickBooks tool hub is one of the most common and useful tools that the users can use to fix many QuickBooks errors. So, here are the steps that you can follow to run the QuickBooks install tool hub on your PC to resolve the QuickBooks error.

  • First, close the QuickBooks application. 

  • Thereon, download the QuickBooks tool hub from the official website of QuickBooks products. 

  • Once you have downloaded the application, open the setup folder name “QuickBooksToolsHub.exe” from the folder.

  • There after, follow the on-screen steps to complete the installation process. 

  • Now, open the tool hub by double-clicking on the QuickBooks tool hub icon on the desktop screen.

  • After that, under the left-hand side menu list, click on the “Program Problems” option. 

  • Then click on the “Quick Fix My Program” option.

  • Now, the program will start repairing the application. 

  • Once the repairing process ends, close the QuickBooks tool hub and launch the QuickBooks desktop application again.

After performing the steps mentioned earlier, try to take a backup of the company file, and in case you are still facing the QuickBooks error code 6123, 0, then don't be panic and jump on to the next solution. 

Solution 2: Change the name ND File) & TLG File

Through the Network data (.ND) file, users can access the company's file over the internet. If the network data file is damaged or corrupted, it can lead to the QuickBooks error code 6123. In this situation, renaming the .ND file can lead to the solution of the problem. 

So, here are the steps you can follow to rename the network data extension file.

  • First, navigate to the location where you have saved the QuickBooks company file on your PC.

  • Please select the network data extension file and right-click on its name. 

  • After that, click on the rename option. 

  • Now, add “.old” at the end of the name. With this effect, the file's new name will end as “.ndold.” 

  • Similarly, in the same manner, rename the Transaction Log file (.TLG), i.e., “.tlg.old.” 

Once you have renamed the TLG and ND files, check if this method has helped you solve the QuickBooks error or is it still occurring. 

Solution 3: Add a new Windows user

There can be chances that the windows admin user will be corrupted. In that case, users have to add a new window user to solve all the errors arising from the corrupted windows admin user. So, for adding a new window user, here are the steps you can follow to get it done.

  • First, launch the Control panel settings on your PC. 

  • Under the user icon, click on the “Create a New user” option.

  • After that, select the Administrator as a user type and provide the account's name and login password. Also, make sure to log out from the existing user accounts. 

  • Moving ahead, click on the restart your PC and log in to the new window user. 

At last, launch the QuickBooks desktop application and check for the presence of the error. 

Solution 4: Restoring the Backup File from Hard Driver

  • First, navigate to the location where the QuickBooks company file is saved on your PC. 

  • Thereon, open the QuickBooks backup file folder and then search for the .qbb extension file with the same name as your company file. 

  • Now, copy that backup file and save it to the local storage on your PC. 

  • After that, open the QuickBooks desktop and restore the company file you copied to the local storage. 

After following the steps mentioned above, the QuickBooks error 6123, 0 must be resolved at this stage. 


So, that's all with the blog on QuickBooks Error code 6123, 0. In this blog post, we have listed four quick solutions that you can follow to resolve the QuickBooks error code 6123,0. In case if you still are facing the error or if you have any other query related to the topic, then you can reach out to us through the help section, or you can mail us your query. Our experienced and professional experts with in-depth knowledge of QuickBooks are available 24*7 at the help desk to answer your queries.



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