How Do I Fix an AutoCAD File Is Not Valid?

How Do I Fix an AutoCAD File Is Not Valid?

Are you facing the frustrating issue of encountering an “AutoCAD file is not valid” error message? Don’t worry, as this article will guide you through the steps to fix this problem and get your AutoCAD files back in working order.

What Causes the “AutoCAD File Is Not Valid” Error?

The “AutoCAD file is not valid” error can occur due to various reasons. Some common causes include:

  • Corrupted files: If the AutoCAD file itself is corrupted or damaged, it may result in this error.
  • Incompatible software versions: Trying to open an AutoCAD file created with a different version of the software can lead to this issue.
  • Incomplete or interrupted file transfer: If the file transfer process was not completed successfully or was interrupted, it can cause the file to become invalid.

Steps to Fix an AutoCAD File Is Not Valid Error

To resolve the “AutoCAD file is not valid” error, follow these steps:

Step 1: Check for Software Updates

If you are using an older version of AutoCAD, it’s possible that updating it to the latest version could solve compatibility issues. Visit the official Autodesk website and check for any available updates or patches for your version of AutoCAD.

Step 2: Repair or Recover Corrupted Files

If you suspect that your AutoCAD file is corrupted, try repairing or recovering it using built-in AutoCAD tools. Open AutoCAD and navigate to the “Application Menu” > “Drawing Utilities” > “Recover” or “Repair” option. Follow the on-screen instructions to recover the file.

Step 3: Use the DWG TrueView Tool

If the above steps didn’t work, you can try using the DWG TrueView tool provided by Autodesk. This free tool allows you to open and view AutoCAD files, even if you don’t have AutoCAD installed. Sometimes, opening the file in DWG TrueView and then saving it again can fix any underlying issues causing the “AutoCAD file is not valid” error.

Step 4: Check for File Transfer Issues

If you received the AutoCAD file from someone else or downloaded it from the internet, there’s a possibility that the file transfer process was incomplete or interrupted. Try downloading or transferring the file again to ensure that you have a complete and valid copy.


The “AutoCAD file is not valid” error can be frustrating, but by following these steps, you should be able to fix most common issues causing this error. Remember to keep your software up to date, repair or recover corrupted files, use tools like DWG TrueView if needed, and double-check for any file transfer issues. With these methods at your disposal, you’ll be back to working with your AutoCAD files in no time.