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My dwg file has become damaged

Printed From: CAD Forum
Category: EN
Forum Name: AutoCAD
Forum Description: Discussion about AutoCAD and AutoCAD LT, viewers, DWG and DWF formats, Design Review, AutoCAD 360, add-ons
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=10965
Printed Date: 19.May.2026 at 08:37


Topic: My dwg file has become damaged
Posted By: hardSann
Subject: My dwg file has become damaged
Date Posted: 06.Feb.2015 at 16:23

Hi everyone. I have an issue – My dwg file has become damaged and  I get an error: Drawing file is not valid. 

Any idea? Maybe there is some way to recover it…

Thanks


Replies:
Posted By: John Connor
Date Posted: 06.Feb.2015 at 18:14
Did it become damaged as a result of AutoCAD crashing?

Do you have a .BAK file for this drawing?

Did you search for a .SV$ file?

Usually the error means the drawing is beyond use but you can try the following.

1. Use the RECOVER command.

2. Attempt to INSERT the drawing into a new, clean drawing.


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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: kenn.s
Date Posted: 08.Feb.2015 at 21:31
Open a blank DWG and run the INSERT command. Select the problematic file and see if it will insert. If it does, then run EXPLODE and select the inserted block. Run AUDIT and PURGE commands, and then use SAVEAS to create a new DWG.

Look in the same directory where the DWG resides and see if there is a BAK file of the same name. If so, rename the BAK extension to DWG and see if the file can then be opened.

Look in C:\Windows\Temp for files with an SV$ extension. If any exist with a similar name to the corrupted DWG file, then rename the extension to DWG and see if it can then be opened.

Go to your backup system and restore the file from a time before it became corrupted.

http://www.filerepairforum.com/forum/cad-tools/cad-tools-aa/dwg/705-how-to-fix-autocad-file" rel="nofollow - maybe this forum can help


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