Software & Apps File Types What Is a CATDRAWING File? How to open, edit, & convert CATDRAWING files by Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated on June 12, 2020 File Types Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More Tweet Share Email A file with the CATDRAWING file extension is a CATIA Drawing file created with the 3D CAD manufacturing software called CATIA. A CATDRAWING file stores a two-dimensional drawing and is always linked to a .CATPART file, which holds the 3D elements of the model. Without this other linked file, the CATDRAWING file can't open. How to Open a CATDRAWING File CATDRAWING files can be opened with Dassault Systèmes CATIA tool. Other 3D CAD programs may be able to open CATDRAWING files, too, like Oracle's AutoVue 3D Professional Advanced. You can read more about this software on Oracle's website. WorkXplore 3D will work as well, and maybe even Siemens NX and SOLIDWORKS 3D CAD. You can also try opening the file with a text editor. If you see the text "V5" at the very beginning of the file or the word "CATIA" anywhere within it, then your CATDRAWING is, in fact, a CATIA file. The reason it's not opening in CATIA may be that there's an issue with the installation of the program or a problem with your specific file. If your CATDRAWING file doesn't have that text at its start and is full of clear text that you can read perfectly fine, then your specific file is a text document and can be read normally with any text editor. This is probably not the case with most CATDRAWING files, but it is something you should look for if CATIA doesn't work. If you find that an application on your PC does try to open the CATDRAWING file but it's the wrong application or if you would rather have another installed program open CATDRAWING files, you can change the default program for that file extension in Windows. How to Convert a CATDRAWING File CATIA can export CATDRAWING files to CAD formats like STEP, DXF, and others. You can also save the file as a PDF in CATIA using the File > Save as menu. If you want to save multiple CATDRAWING files to the same PDF, you have to change some of CATIA's settings. Go to Tools > Options and expand the General tab to select Compatibility. Access the Graphics Formats tab and place a check in the box next to the Save multi-sheet document in a single vectorial file option. Another option for converting CATDRAWING to PDF is to use Tetra4D Converter. The other CATDRAWING file openers from above might support converting the file, too. eDrawings Professional for CATIA V5 is a type of plug-in for CATIA that lets you export models to a read-only format that's compressed and easy to share with others. Still Can't Open the File? Some files look similar because their file extensions use some of the same letters or numbers, so they can be easy to confuse for other files and therefore not open with the program you'd expect to use them with. This most likely isn't the case with CATDRAWING files since the extension is fairly easy to read. However, maybe you have a CATPRODUCT file which looks similar and is indeed used by CATIA, but it's not in the exact same format. So, if your file won't open as you'd expect, consider that you might be dealing with one of those files instead. DRAWING files resemble this file extension, too, but they're Artboard Drawing files used by Artboard, not CATIA.