Damaged Company File – QuickBooks Error Code (-6000, -305)

If you are visiting this article, you are one of the users who are facing the most basic, frequently occurring error of them all. The error code (-6000, -305) is so big that number of people all over the world face this issue every now and then. This error code (-6000, -305), occurs when the company file has been damaged or there might be an issue with the networking set-up of the QuickBooks Software.

Every software has its pros and cons, it can be user friendly as well as user inadequate at the same time, and it can handle all your calculations and also prompt a message at the same time on your screen saying; “unable to open the file”.

A software powered, marketed by Intuit; QuickBooks with all its errors and issues, also provides anywhere, anytime, anyplace, customer assistance by our experienced and professional ProAdvisors, users can easily get help at their convenience.


Before performing any steps to resolve the error, install and run QuickBooks File Doctor tool. Most importantly, ensure that your version of QuickBooks is up to date.

Solution 1: Run the QuickBooks File Doctor

  1. Download, install and run the QuickBooks File Doctor. If the tool finds any data/file damage and is not able to repair it, you then have two options:
  2. Firstly you need to restore a recently backed up company file.
    Now, restore all of your data using ADR (Auto Data Recovery)

Usually, these issues are generated by Desktop Software. Either a web-based or a cloud-based software allows the designer to continually upgrade the product without the customers having to download or buy the upgrades. The software provider hosts the data for safety of your data so in web based software you will not be able to store data locally like a company file.

Note: Auto Recovery for auto-data is only available for QB pro & premier ‘10 R12, QB pro & Premier ‘11 R6, QB ‘12 Pro & Premier and other later versions.

Solution 2: Open a sample company file

  • By opening a sample company file, you can figure out whether the problem is with the company file or the QuickBooks Application. If the sample company file does not open and it prompts an error, that means there is an issue with the QuickBooks installation and needs immediate repair.
  • Click and open the sample company file button which is in the No Company Open window and now you can choose any from the list of sample company files.
    If the sample company file opens, issue is resolved; if not you can proceed to the next solution.

Solution 3: Copy the QuickBooks file on the desktop

Open the company file folder.
Now look for the fie with .Qbw extension.
Select and copy the file.
Now, go back to the desktop and paste the file there.
While holding down the control key, open QB, so that you get directed back to the No company open window.
Now, click Open or Restore an Existing company file. Go to the desktop and find the file that you just copied.

If this error still persists and you are unable to fix it, then don’t worry, we provide day/night assistance from our trained and experienced ProAdvisors anywhere, anytime. Our aim lies within the customer’s complete satisfaction.

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