1. DO File Extension
2. What is a(n) DO file?
3. How to open DO file?

3.1 Find and download then install appropriate software
1. 3.1.1 Programs that support DO files
3.2 Verify whether the DO file is not infected with malware
3.3 Verify whether the DO files is complete, that is, was it downloaded properly
3.4 Verify whether DO files are associated with proper software
3.5 Verify whether the storage medium on which the DO files is stored is not damaged or corrupted

4. Similar file extensions

DO File Extension

File type Java Servlet
File developer N/A
File category Web Files
File popularity rating

What is a(n) DO file?

DO files are used to create dynamic websites and are web-based programs written in Java that can be run by servers supporting this language, including the popular Tomcat or IBM WebSphere servers. It is also common to find files with the .VCS extension, which are identical to .DO files, and they are used in scheduling software. This extension can also be a URL mapping scheme, in which case it is not a file extension.

How to open DO file?

Step 1. Find and download then install appropriate software

Typically in order to open .DO files it is sufficient to follow these simple steps: find, download, and install appropriate software. Then, by double-clicking on the file icon, open the file. System should automatically associate DO file with appropriate software. Below is the list of programs required to open files with DO extension:

Programs that support DO files

Windows

MAC OS

Linux

Apache Tomcat

Step 2. Verify whether the DO file is not infected with malware

If given file with DO extension is not infected, it is possible that the antivirus software is blocking access to the file. User should take necessary precautions and follow the steps suggested by the system. After recovering or removing the infected file it is recommended to scan the entire system for viruses. Yo will have to acquire a new, clean version of DO file.

Hint!

Be advised that you can always consult an IT expert for help. Some problems with DO files can be hard to solve for less sophisticated users. Also, you can ask for help one of the developers of software that supports files with DO extension. In order to do so, go to software’s subpage and search for software’s developer website address

Step 3. Verify whether the DO files is complete, that is, was it downloaded properly

If the DO file has not been downloaded properly it is not possible for the software to open such file. Check the file size in the location from where you downloaded the file in question. If the size of the original file differs from the size of downloaded DO file, you will have to download the file again.

Step 4. Verify whether DO files are associated with proper software

If the system registry has no entry related to default program that should be used to open DO files, even though given program is installed on the system, then DO files must be associated with the application in question.

Associating files with applications is performed similarly regardless of the type of system and consists in selecting an application which should be used for opening given type of files. In order to associate DO files with given application, right-click the file icon and select form the context menu "Open with" option, which will display a list of suggested programs. Select your program from the list. If the application is not on the list, use the "Browse" button and point to the location of the application. Checking "Always use selected application to open this kind of files" option will set selected application as the default application for opening given files.

Step 5. Verify whether the storage medium on which the DO files is stored is not damaged or corrupted

It is possible that the storage medium on which the file is located is damaged or corrupted. Try scanning the storage medium for errors.

Similar file extensions

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DO file – What is it? How to open such file? Solutions to problems with DO files