File Extension Library

.DO File Extension

  • Category: Web Files

What is an .DO file?

.DO file extension has been classified as Web Files.

.DO is Java Servlet

A DO file is a web-based Java program run by a web server that supports Java, such as Tomcat or IBM WebSphere. It is typically mapped to the Struts controller, which processes the file. DO files are used for generating dynamic web pages.

Some webinar programs may generate DO files that are formatted as .VCS files. Changing the file extension to ".vcs" may allow these files to be imported into various scheduling programs.

NOTE: The ".do" extension may also be a URL mapping scheme for a web application and not a file extension. For example, the Struts framework often uses the ".do" string for mapping Java servlet actions in the web.xml configuration file.

List of all softwares that can open the Java Servlet
Apache Tomcat
Apache Tomcat
Apache Tomcat

How to Open .DO file on different platforms

Open .DO File on Windows

  • Right-click a .DO
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .DO file and Select check box "Always use this app to open .DO files" Press "Ok"

Open .DO File on Mac

  • Right-click (or Ctrl + Left-click) the .DO file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .DO File on Linux

Right click on the .DO file, choose "Open with" and select a program from the list above

Open .DO File on iPhone

Select a file. If you don't see an application to open the .DO file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .DO File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .DO files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .DO files

  1. You need to update the application that you normally use to open .DO files. Only the latest version of the software supports the current .DO file format
  2. You need to check the .DO file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)