API File Extension

What is API file?

API is a file extension commonly associated with Acrobat Plug-in files. Adobe Systems defined the Acrobat Plug-in format standard. Files with API extension may be used by programs distributed for Mac OS, Windows platform. API file belongs to the Plugin Files category just like 179 other filename extensions listed in our database. The most popular program for handling API files is Adobe Acrobat, but users can choose among 3 different programs that support this file format. Software named Adobe Acrobat was created by Adobe Systems Incorporated. In order to find more detailed information on the software and API files, check the developer’s official website.

Programs which support API file extension

The list that follows enumerates programs compatible with API files, divided into 2 categories based on operating system on which they are available. Files with API suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with API extension?

Being unable to open files with API extension can be have various origins. What is important, all common issues related to files with API extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Download and install Adobe Acrobat

The main and most frequent cause precluding users form opening API files is that no program that can handle API files is installed on user’s system. This issue can be addressed by downloading and installing Adobe Acrobat or different compatible program, such as Adobe Reader. Above you will find a complete listing of programs that support API files, classified according to system platforms for which they are available. The safest method of downloading Adobe Acrobat installed is by going to developer’s website (Adobe Systems Incorporated) and downloading the software using provided links.

Step 2. Verify the you have the latest version of Adobe Acrobat

If the problems with opening API files still occur even after installing Adobe Acrobat, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Adobe Acrobat is available. Software developers may implement support for more modern file formats in updated versions of their products. The reason that Adobe Acrobat cannot handle files with API may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Adobe Acrobat.

Step 3. Set the default application to open API files to Adobe Acrobat

If the issue has not been solved in the previous step, you should associate API files with latest version of Adobe Acrobat 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.

The procedure to change the default program in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the API file
• Select Choose another app → More apps
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the Adobe Acrobat installation folder. Confirm by checking Always use this app to open API files box and clicking OK button.

The procedure to change the default program in Mac OS

• Right-click the API file and select Information
• Open the Open with section by clicking its name
• Select the appropriate software and save your settings by clicking Change all
• If you followed the previous steps a message should appear: This change will be applied to all files with API extension. Next, click the Continue button to finalize the process.

Step 4. Ensure that the API file is complete and free of 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 API file. Being unable to access the file can be related to various issues.

1. Check the API file for viruses or malware

Should it happed that the API is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. API file is infected with malware? Follow the steps suggested by your antivirus software.

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

If you obtained the problematic API file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with API extension was interrupted and the file data is defective. Download the file again from the same source.

3. Check if the user that you are logged as has administrative privileges.

Some files require elevated access rights to open them. Log out of your current account and log in to an account with sufficient access privileges. Then open the Acrobat Plug-in file.

4. Verify that your device fulfills the requirements to be able to open Adobe Acrobat

If the systems has insufficient resources to open API files, try closing all currently running applications and try again.

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 Acrobat Plug-in file. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle API files.

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