NCO File Extension

Nero BackItUp Format
- File Type nco
- Developer Nero
- Popularity
- Application Nero BackItUp
- Category Backup Files
- Format Zip
What is a NCO file?
The NCO extension is related to Nero BackItUp Format and is classified in the Backup Files category, which contains 395 files.
The Nero BackItUp Format (NCO), created by Nero, is one of file format they developed, and they also built 13 programs to support them.
NCO files are compatible with various operating systems, including Windows. When working with NCO files, you can rely on 2 programs, including Nero BackItUp and WinZip.
How to open a NCO file?
If you can’t open a NCO file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
Nero BackItUp and WinZip are among the most widely used programs for handling NCO files. If you wish to install the latest release of Nero BackItUp, visit the official Nero portal and download the edition that works on any operating system.
Once Nero BackItUp is installed, the OS should configure it as the default tool for opening NCO files.
Setting Nero BackItUp as default NCO viewer
Change the default app for a file type in Mac
- Initiate a right click or use Control + left click on the desired NCO file to open a menu where you can select various 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 Nero BackItUp. Check the box next to "Always open in app" to make it the default option.
Change default programs in Windows
- Take the first step by right-clicking on your NCO file. Next, select "Open With" and then choose "Choose another app" from the available options;
- Choose Nero BackItUp from the available applications listed in the pop-up window to set it as the default application to open your NCO file;
- Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.
How to edit a NCO file?
To modify NCO files, it is necessary to install dedicated software that lets you open and edit backup files. Online NCO editors generally offer fewer tools compared to programs designed for Nero BackItUp Format.
Best NCO Editor Software in 2026
According to these factors, we have compiled a list of available NCO editors.
| NCO Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Nero BackItUp | Nero | Windows | 4.1 out of 5 (43 reviews) |
Convert files to and from NCO
If a NCO file is cumbersome, converting it to formats such as ZIP, RAR, DA or other supported types can make it easier to manage.
It is important to understand that converting a NCO file might limit certain functions, but this conversion is usually reversible.
Convert NCO to other file formats
Tips and tricks to solve problems with NCO files
If NCO files are giving you trouble, small modifications to your software can help. Check out the troubleshooting tips below to fix these issues.
What are the possible solutions to recover a corrupt NCO file?
In Nero BackItUp, open the damaged NCO file and navigate to the "Repair" menu item. Wait for the recovery process to finish, allowing automatic repair of damaged backup files.
How do I know if my NCO file has been damaged?
The signs of corrupted NCO backup files can manifest as:
- Error alerts occur when actions are performed on the file;
- The file shows slow performance when edited in Nero BackItUp;
- The file does not respond or shows errors when opening it;
- Unexplained NCO file size inflation;
- The file stops responding or freezes in Nero BackItUp or other programs;
What are the possible causes of Nero BackItUp crashing?
Lack of software updates is a possible reason behind Nero BackItUp crash. Keep your Nero products up to date by installing the latest updates.
Restarting your computer is an essential troubleshooting step that can resolve many common problems. It is recommended to restart your computer before making any changes to the software settings.



