Cad graphics file is invalid, can not open the solution

Description of the problem: Many friends may have encountered a CAD file copied from elsewhere when prompted to open the "cad graphic file is invalid" and can not be opened, or after a CAD software error, a CAD graphic The file will not open, and it also prompts that "cad graphics file is invalid"; cad graphics file is corrupted, cad version is too low is the main reason for the "cad graphics file invalid";

Method:

First, after an unexpected power failure, the computer prompts the “cad graphic file to be invalid” when opening the cad graphic file. “

1. Please open “My Computer”. ——>Click on the <quo;Tools”——>Select“Folder Options”——>Switch to “View”>——> Pull down the slider, and hide the extension of the known file type ” remove the previous check ——> click OK to exit; 2. When the cad saves the graphic file, it will also generate a backup with the suffix named bak. Document, at Find the .bak file on the computer (the file name is the same as the file name), copy it to your computer ——>change the .bak to .dwg and open it;

If it is after a cad software error, the "cad graphic file is invalid";

1. Open the AutoCAD software and enter "Recover" in the command line at the bottom of the main window (without quotes) , and then press the Enter key, this is the command to repair the cad graphic file ——> select the wrong cad graphic file ——> when starting the repair, if the encounter stops halfway, again Press the Enter key to continue repairing the cad graphic file. When the repair is complete, click OK;

2. Open the cad graphic file that just went wrong, and the problem should be solved;

Third, if the cad graphic file is copied from another computer (dwg file), double-click the file to appear "cad graphic file is invalid";

1. First check the version of AutoCAD in the other computer If it is CAD2007 or higher, but it is The CAD version in the computer is CAD2003, which means that the CAD version of the other party is higher than the CAD version of the other, which may cause the problem;

2. Download and install the AutoCAD that is consistent with the other version of AutoCAD, and then open the Cad graphics file can be;

Fourth, if the first three methods can not solve "cad graphics file is invalid", you can also Baidu search "Free DWG Viewer", download and install "Free DWG Viewer" Software, convert the cad file directly into PDF format through the converter, and view the cad graphic file in PDF reader. For related conversion tutorial, please click here!

Summary: The problem of "invalid cad graphics file" occurs frequently when copying cad files on other people's computers due to different versions. Downloading and installing the matching version is the best solution. .