COO File Extension
AutoCAD Bounding Coordinates Cookie
- File Type coo
- Developer Autodesk, Inc.
- Popularity
- Application Sublime Text
- Category Text Files
What is a COO file?
Files with the COO extension are specifically tied to AutoCAD Bounding Coordinates Cookie, a Text Files type, and there are 315 files in this category.
The AutoCAD Bounding Coordinates Cookie (COO) was developed by Autodesk, which created file format and 45 programs to work with them.
COO file support extends to various operating systems, including Windows, Linux and Mac OS. To open a COO file, you can choose from 5 programs such as Sublime Text, PSPad and Atom.
Programs that support COO files
How to open a COO file?
If you cannot open a COO file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.
Thanks to their popularity, Sublime Text, PSPad and Atom are often the go-to programs for managing COO files. If you need the newest version of Sublime Text, just access the Sublime HQ Pty website. From there you can download the installer compatible with all systems.
Once Sublime Text is installed, the OS should configure it as the default tool for opening COO files.
Make Sublime Text the default COO viewer
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired COO file to access a dropdown menu of actions;
- Choose "Open in Application" and click "Other";
- Towards the bottom of the window, find the "Enable" menu, which is already set to the default option, "Recommended Programs";
- In this menu, select "All Programs" and search for Sublime Text. Check the box next to "Always open in app" to make it the default option.
Change a default app in Windows
- Start by right-clicking on your COO file, then select the "Open with" option and choose "Choose another app" from the menu that appears;
- Inside the popup window, scroll through the list of applications and specifically choose Sublime Text as the application to associate with your COO file;
- Check the "Always use this app" checkbox and click "OK".
Finding answers to COO file problems
If COO files are giving you trouble, small modifications to your software can help. Check out the troubleshooting tips below to fix these issues.
What can lead to sudden Sublime Text crashes?
Insufficient updates for Sublime HQ Pty products can cause Sublime Text to crash. Be sure to regularly install the latest software updates.
A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.
What is the recommended approach to repair a damaged COO file?
Use a recovery program to open the damaged COO file, and in the menu, click "Repair" to start the repair operation. Wait for the recovery process to finish as it will automatically restore the damaged text files.
What are the ways to check if my COO file is damaged?
Characteristics of corrupted COO text files can include:
- The file encounters problems during the opening process or shows error indications;
- Editing the archive in Atom is hampered by poor overall performance;
- The file causes Sublime Text or other software to hang or crash during various operations;
- An unexplained increase in the size of the COO file;
- Actions performed on the file result in the appearance of error notifications;
How to edit a COO file?
To modify COO files, you need to install special software that makes it possible to open and edit text files. Online COO editors are more restricted compared to software designed for AutoCAD Bounding Coordinates Cookie.
Best COO editors 2026
According to these factors, we have compiled a list of available COO editors.
| COO Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| PSPad | Jan Fiala | Windows | 4.7 out of 5 (41 review) |
| Notepad++ | Notepad++ Team | Windows | 4.6 out of 5 (37 reviews) |
| Sublime Text | Sublime HQ Pty | Windows, Mac OS, Linux | 4.6 out of 5 (39 reviews) |
| Atom | - | Windows, Mac OS, Linux | 4.1 out of 5 (36 reviews) |