OCA file icon

OCA File Extension

Custom Control Library Type Format

What is OCA file?

Full format name of files that use OCA extension is Custom Control Library Type Format. Microsoft defined the Custom Control Library Type Format format standard. OCA file format is compatible with software that can be installed on Windows system platform. OCA file format, along with 1205 other file formats, belongs to the Developer Files category. Users are advised to use Microsoft Visual Studio software for managing OCA files, although 1 other programs can also handle this type of file. On the official website of Microsoft Corporation developer not only will you find detailed information about theMicrosoft Visual Studio software, but also about OCA and other supported file formats.

Programs which support OCA file extension

The following listing features OCA-compatible programs. OCA files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support OCA file

How to open file with OCA extension?

There can be multiple causes why you have problems with opening OCA files on given system. What is important, all common issues related to files with OCA extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Install Microsoft Visual Studio software

Install software to open OCA file The most common reason for such problems is the lack of proper applications that supports OCA files installed on the system. This issue can be addressed by downloading and installing Microsoft Visual Studio or different compatible program, such as Microsoft Visual Basic. Above you will find a complete listing of programs that support OCA files, classified according to system platforms for which they are available. One of the most risk-free method of downloading software is using links provided by official distributors. Visit Microsoft Visual Studio website and download the installer.

Step 2. Verify the you have the latest version of Microsoft Visual Studio

Update software that support file extension OCAIf you already have Microsoft Visual Studio installed on your systems and OCA files are still not opened properly, check if you have the latest version of the software. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that Microsoft Visual Studio cannot handle files with OCA may be that the software is outdated. The most recent version of Microsoft Visual Studio is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open OCA files to Microsoft Visual Studio

If the issue has not been solved in the previous step, you should associate OCA files with latest version of Microsoft Visual Studio you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Associate software with OCA file on Windows

The procedure to change the default program in Windows

  • Right-click the OCA file and choose Open with option
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • To finalize the process, select Look for another app on this PC entry and using the file explorer select the Microsoft Visual Studio installation folder. Confirm by checking Always use this app to open OCA files box and clicking OK button.
Associate software with OCA file on Mac

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected OCA file open the file menu and choose Information
  • Find the Open with option – click the title if its hidden
  • Select Microsoft Visual Studio and click Change for all...
  • Finally, a This change will be applied to all files with OCA extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the OCA for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper OCA file. Being unable to access the file can be related to various issues.

Check OCA file for viruses
1. Verify that the OCA in question is not infected with a computer virus

Should it happed that the OCA is infected with a virus, this may be that cause that prevents you from accessing it. Scan the OCA file as well as your computer for malware or viruses. If the OCA file is indeed infected follow the instructions below.

2. Ensure the file with OCA extension is complete and error-free

If the OCA file was sent to you by someone else, ask this person to resend the file to you. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. If the OCA file has been downloaded from the internet only partially, try to redownload it.

3. Ensure that you have appropriate access rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run Microsoft Visual Studio

If the system is under havy load, it may not be able to handle the program that you use to open files with OCA extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Custom Control Library Type Format file. It is possible that one of the available system or driver updates may solve the problems with OCA files affecting older versions of given software.

Do you want to help?

If you have additional information about the OCA file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on OCA file.

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