021 File Extension

Split Format Or Compressed Format From A Multi-volume Archive (part 21)
- File Type 021
- Developer Igor Pavlov
- Popularity
- Application 7-zip
- Category Compressed Files
What is a 021 file?
Files with the 021 extension are specifically tied to Split Format Or Compressed Format From A Multi-volume Archive (part 21), a Compressed Files type, and there are 820 files in this category.
The Split Format Or Compressed Format From A Multi-volume Archive (part 21) (021) was developed by Pavlov, which created file format and 2 programs to work with them.
021 file support extends to various operating systems, including Windows. To extract a 021 file, you can choose from 5 programs such as 7-zip, WinRAR and Total Commander.
Programs that support 021 files
How to open a 021 file?
If you cannot open a 021 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, 7-zip, WinRAR and Total Commander are often the go-to programs for managing 021 files. If you need the newest version of 7-zip, just access the Pavlov website. From there you can download the installer compatible with all systems.
Once 7-zip is installed, the OS should configure it as the default tool for opening 021 files.
Make 7-zip the default 021 viewer
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired 021 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 7-zip. 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 021 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 7-zip as the application to associate with your 021 file;
- Check the "Always use this app" checkbox and click "OK".
Finding answers to 021 file problems
If 021 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 7-zip crashes?
Insufficient updates for Pavlov products can cause 7-zip 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 021 file?
Use a recovery program to open the damaged 021 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 compressed files.
What are the ways to check if my 021 file is damaged?
Characteristics of corrupted 021 compressed files can include:
- The file encounters problems during the opening process or shows error indications;
- Editing the archive in 7-zip is hampered by poor overall performance;
- The file causes 7-zip or other software to hang or crash during various operations;
- An unexplained increase in the size of the 021 file;
- Actions performed on the file result in the appearance of error notifications;
How to edit a 021 file?
To modify 021 files, you need to install special software that makes it possible to open and edit compressed files. Online 021 editors are more restricted compared to software designed for Split Format Or Compressed Format From A Multi-volume Archive (part 21).
Best 021 editors 2026
According to these factors, we have compiled a list of available 021 editors.
| 021 Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| 7-zip | Pavlov | Windows | 4.8 out of 5 (39 reviews) |
| Split File Shell Extension | BERGER Laurent | Windows | 4.8 out of 5 (38 reviews) |
| Total Commander | Ghisler | Windows | 4.5 out of 5 (38 reviews) |
| HJSplit | Freebyte | Windows | 4.4 out of 5 (41 review) |






