II File Extension
IconWorkshop Extended Information Format
- File Type ii
- Developer Axialis Software
- Popularity
- Application Visual C++
- Category Developer Files
What is a II file?
The II extension is related to IconWorkshop Extended Information Format and is classified in the Developer Files category, which contains 1166 files.
The IconWorkshop Extended Information Format (II) was developed by Axialis, which created file format and 3 programs to work with them.
II files are supported by Windows. To open a II file, you can choose from 2 programs such as Visual C++ and Borland C++.
How to open a II file?
If you cannot open a II 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.
Visual C++ and Borland C++ stand out as the preferred programs to manage II files effectively. To install the current version of Visual C++, go directly to the official Microsoft website. The universal package for all operating systems is available there.
After successful installation, your operating system should seamlessly handle II files via Visual C++.
Set Visual C++ as the default II program
Change Default Program on Mac
- Right click or Control + left click on the desired II file;
- Choose "Open in Application" and click "Other";
- Go to the lower section of the window, where you will find the "Enable" menu. By default, it is set to "Recommended Programs";
- Select "All Programs" from this menu and proceed to search for Visual C++. Check the box next to "Always open in app" to set it as the default option.
Set default programs for Windows
- Start by right-clicking on your II file, then select the "Open with" option and choose "Choose another app" from the menu that appears;
- In the pop-up window, select the Visual C++ application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening II files.
Solve problems with II files
II files may present some challenges, but most can be easily addressed with minor software tweaks. See the troubleshooting tips below for guidance.
What are the ways to check if my II file is damaged?
II developer files that have become corrupted may display one or more of the following symptoms:
- The file does not respond or shows errors when opening it;
- The file exhibits poor performance during editing operations in Visual C++;
- The file stops responding or freezes in Visual C++ or other programs;
- Unexplained II file size inflation;
- Actions performed on the file result in the appearance of error notifications;
Why does Visual C++ crash or shut down frequently?
Insufficient updates for Microsoft products can cause Visual C++ to crash. Be sure to regularly install the latest software updates.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
Is there any specific software or utility that can help repair a damaged II file?
Use a recovery program to open the damaged II file, and in the menu, click "Repair" to start the repair operation. Wait for the recovery process to finish, allowing automatic repair of damaged developer files.
How to edit a II file?
To make changes to II files, you need specialized software that allows both opening and editing the developer files. Online II editors offer fewer capabilities than applications optimized for IconWorkshop Extended Information Format.
Best II Editor Software in 2026
With the mentioned criteria in mind, we have assembled a selection of II editors.
| II Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Borland C++ | Micro Focus | Windows | 4.2 out of 5 (42 reviews) |
| Visual C++ | Microsoft | Windows | 4.2 out of 5 (43 reviews) |