C__ File Extension

C++ Source Code
- File Type c__
- Popularity
- Application Visual C++
- Category Developer Files
What is a C__ file?
The C__ extension is related to C++ Source Code and is classified in the Developer Files category, which contains 1166 files.
C__ files are compatible with various operating systems, including Windows and Mac OS. You can open a C__ file using one of 3 programs, for example Visual C++, Xcode and Borland C++.
How to open a C__ file?
The most common reason why a C__ file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
Visual C++, Xcode and Borland C++ are among the most widely used programs for handling C__ files. If you wish to install the latest release of Visual C++, visit the official Microsoft portal and download the edition that works on any operating system.
Following installation, C__ files should be automatically opened with Visual C++.
Set Visual C++ as the default C__ application
Change the default app that opens a file on Mac
- Right-click or use Control + Left-click on the desired C__ file to open a menu where you can choose from multiple actions;
- Choose "Open in Application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to Visual C++. Check the box next to "Always open in app" to make sure it’s the default option.
Change default programs in Windows
- Start the process by right-clicking on your C__ file and selecting "Open With". From there, click "Choose another app" to continue;
- From the options listed in the pop-up window, specifically choose Visual C++ as the application to handle your C__ file;
- Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.
Troubleshooting guide for C__ file complications
When issues arise with C__ files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What are the possible solutions to recover a corrupt C__ file?
Start a recovery program, open the damaged C__ file and then select the "Repair" menu item to start the repair procedure. Wait for the recovery process to finish, allowing automatic repair of damaged developer files.
How can I confirm if my C__ file has been damaged?
The signs of corrupted C__ developer files can manifest as:
- The file shows slow performance when edited in Xcode;
- The file stops responding or freezes in Visual C++ or other programs;
- The file does not respond or shows errors when opening it;
- Unexplained C__ file size inflation;
- The file operation is accompanied by the display of error messages;
What are the possible causes of Visual C++ crashing?
Lack of regular software updates can cause Visual C++ to crash. Make sure you have installed the latest updates for Microsoft products.
Restarting your computer is a crucial troubleshooting measure that can alleviate numerous common problems. Therefore, it is advisable to restart your computer before modifying any settings related to the software.
How to edit a C__ file?
To modify C__ files, it is necessary to install dedicated software that lets you open and edit developer files. Online C__ editors generally offer fewer tools compared to programs designed for C++ Source Code.
Best C__ Editor Software in 2026
Taking into account the provided details, we have prepared a list of C__ editors that match your needs.
| C__ Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Xcode | Apple | Mac OS | 4.7 out of 5 (39 reviews) |
| Borland C++ | Micro Focus | Windows | 4.2 out of 5 (42 reviews) |
| Visual C++ | Microsoft | Windows | 4.2 out of 5 (43 reviews) |





