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Basic information about A4R file

When there is a problem with opening files with the file extension A4R（*.A4R or *.a4r）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the A4R file yourself.

There are 1 file types using the A4R file extension in our database. In the further part of this page, you will find detail information about all the A4R file with their brief description and a list of programs that support A4R file sorted by operating systems. The table below provides useful information about the A4R file extension. It answers questions such as:
  • What is the A4R file?
  • How to open a A4R file?
  • What programs do I need to open a A4R file?
  • What programs help to create and edit a A4R file?
  • How to convert A4R files to another file format?
  • How to convert another files to A4R file format?


1.Detail information about A4R file extension: Adobe Authorware Package Course

File type Adobe Authorware Package Course Category Misc Files
Developer Adobe Systems File format N/A
Description A4R file is a Adobe Authorware Package Course developed by Adobe Systems. Full format name of files that use A4R extension is Adobe Authorware Package Course. A4R files are supported by software applications available for devices running Windows. The software recommended for managing A4R files is Adobe Authorware. On the official website of Adobe Systems Incorporated developer not only will you find detailed information about theAdobe Authorware software, but also about A4R and other supported file formats.
Software programs that will open, edit or convert A4R files

Windows		 Adobe Authorware



Can't open a A4R file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.A4R”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the A4R extension without any issue.


Where I can download the application that support A4R file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of A4R files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a A4R file?

The reasons for the lack of the ability to open a A4R file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a A4R file. If there is still something wrong, you might want to check:

  • Whether the A4R file is damaged.
  • Whether the A4R file is incorrectly linked in the registry entries.
  • Whether the A4R file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the A4R file format is incompletely.
  • Whether the A4R file is infected.
  • Whether the drivers of the equipment used for opening a A4R file are up to date.
  • Whether your computer has enough hardware resources to open a A4R file.

If the A4R file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.