Tips to open ASU file
Can't open the ASU file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open ASU files as well as a list of programs that support ASU files.
ASU file extension
| File Name |
ToolBook Package Definition |
| File Developer |
SumTotal Systems, Inc. |
| File Category |
Settings Files |
The ASU file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the ASU files. Below is a summary of the number of programs that support and open the ASU file on each system platform.
What is ASU file?
The ASU file has been categorized as Settings Files. The author of this format is SumTotal Systems, Inc.. In addition to this file, the Settings Files category includes 1305 related files. ToolBook Package Definition is most often found on 1 operating systems. The file will work on Windows systems, unfortunately not on others. It is recommended to use ToolBook to handle this file. This is a program created by SumTotal Systems, Inc..
How to open ASU file?
An often recurring problem with ToolBook Package Definition is that ASU is not associated with the correct program file. This causes the file ASU to open by system applications not designed for this purpose, or to display a message that there is no associated program. How to solve such a problem?
The first thing you should do is just "doubleclick" on the ASU file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.
Step 1. Install ToolBook
An often overlooked issue is to make sure that ToolBook is installed on the computer. The easiest method is to use the system search engine by entering the program name ToolBook in it. If it is not, installation may solve the problem, as most applications create file associations during installation. Later in this article you will find a list of programs that can open ASU files.
Programs to open ASU file
Remember to download programs supporting ASU files only from verified and safe sources. We suggest using the websites of software developers.
Step 2. Create association of ToolBook with ASU files
If, despite the installed application, the ASU file does not start in the ToolBook application, you must create a file association. It is most convenient to call the context menu with the right mouse button and select Properties. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Changes can be made using the "Change" button. If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. However, it is important to check the "Always use the selected program ..." box, this will allow you to permanently associate the ASU file with the ToolBook application.
Step 3. Update ToolBook to the latest version
The fault may also lie with the ToolBook program, it is possible that ToolBook Package Definition requires a newer version of the program. This can be done using the application (if it provides such options) or from the SumTotal Systems, Inc. website and install the latest version.
Step 4. Check for the following problems with the ASU file
If the above steps do not help, you can assume that the file itself is not correct. File problems can be divided into the following:
Very often, the file may be size 0 or incomplete. This suggests truncating the ASU file contents when downloading or copying. Downloading the file again should fix the problem.
The computer may have fallen victim to a computer virus or hacker. A quick virus scan using an up-to-date antivirus program should clear up any doubts. Some antivirus vendors also provide free online scanners. For the best results, we will scan the entire operating system, not just our ASU file. Sometimes virus-infected ASU files cannot be recovered, so make a backup in advance.
This can happen especially when the program is dynamically developed and the structure of the ASU files changes over time. These problems are known and are often very easy to fix using the software developers's website.
The file may be corrupted in a number of ways. Repairing is very dependent on the file type. Some programs offer the option of recovering data from damaged ASU files. The easiest way to restore the file is from a backup or by contacting SumTotal Systems, Inc., but this one can be expensive. Not all damage can be reversed.
The program can also signal the fact of encryption. The encrypted file ASU except for the special designation, works normally, but only on the device where it was encrypted, before transferring it to another machine, decryption is required.
Some of the system directories are excluded from modification. These directories are write-protected to them and it's very hard to fix this problem. It is best to move ASU to a different directory.
This problem only occurs with more complex files. You may find that another program you are using is preventing you from working with the file. Closing other programs should help. Sometimes you have to wait for the session to the file ASU to close. Some anti-virus or backup software may occupy the ASU file for a certain period of time. If this does not work either, restart the device.
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