AS File Extension

What is AS file?

AS files are associated with ActionScript programming language.

What kind of data can AS files store?

Files with AS extension store source code for Flash applications. AS file can store instructions and function definitions, as well as variables and external or system resource references (including system libraries).

What is ActionScript?

ActionScript is an object-oriented programming language based on JavaScript. ActionScript is typically used for developing and managing animations, banners, or other visual effects commonly found on websites. ActionScript code is stored in AS files. ActionScript is a full-fledged programming language and can be used to create fully-functional, interactive, and visually pleasing website. ActionScript is also used with great success for creating web-based games, forms, or advanced menus.

Can AS files be manually edited?

AS files store data in text format and thus can be easily edited using a text editor. However, it is recommended that AS files be edited using dedicated editing tools to avoid potential syntax errors. Such tools can automatically highlight keywords, correct syntax errors, or autofill values.

Programs which support AS file extension

The list that follows enumerates programs compatible with AS files, divided into 3 categories based on operating system on which they are available. Files with AS suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Updated: 09/04/2022

How to open file with AS extension?

There can be multiple causes why you have problems with opening AS files on given system. On the bright side, the most encountered issues pertaining to ActionScript Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Download and install Adobe Dreamweaver

The main and most frequent cause precluding users form opening AS files is that no program that can handle AS files is installed on user’s system. This one is an easy one. Select Adobe Dreamweaver or one of the recommended programs (for example, Text editor, Windows Notepad, NotePad++ text editor) and download it from appropriate source and install on your system. The full list of programs grouped by operating systems can be found above. If you want to download Adobe Dreamweaver installer in the most secured manner, we suggest you visit Adobe Systems Incorporated website and download from their official repositories.

Step 2. Update Adobe Dreamweaver to the latest version

If the problems with opening AS files still occur even after installing Adobe Dreamweaver, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Adobe Dreamweaver is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that Adobe Dreamweaver cannot handle files with AS 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 Dreamweaver.

Step 3. Associate ActionScript Format files with Adobe Dreamweaver

After installing Adobe Dreamweaver (the most recent version) make sure that it is set as the default application to open AS files. The method is quite simple and varies little across operating systems.

Selecting the first-choice application in Windows

• Right-click the AS file and choose Open with option
• 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 Dreamweaver installation folder. Confirm by checking Always use this app to open AS files box and clicking OK button.

Selecting the first-choice application in Mac OS

• By clicking right mouse button on the selected AS file open the file menu and choose Information
• Find the Open with option – click the title if its hidden
• 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 AS extension. Next, click the Continue button to finalize the process.

Step 4. Ensure that the AS 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 AS file. Problems with opening the file may arise due to various reasons.

1. Verify that the AS in question is not infected with a computer virus

Should it happed that the AS 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. If the AS file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

If the AS 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. When downloading the file with AS extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the ActionScript Format file again.

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

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

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

Latest versions of programs and drivers may help you solve problems with ActionScript Format files and ensure security of your device and operating system. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle AS files.

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