File Extension Library

.ASPX File Extension

  • Developer by: Microsoft
  • Category: Web Files
  • Format: Text

What is an .ASPX file?

.ASPX file extension is created by Microsoft. .ASPX has been classified as Web Files. The format of .ASPX file is Text.

.ASPX is Active Server Page Extended File

An ASPX file is a server-generated web page that may contain VBScript or C# code. It is often written with Microsoft Visual Web Developer and designed for the Microsoft ASP.NET framework. ASPX files contain scripts that are processed on the web server and the resulting HTML is sent to the user's web browser.

ASPX pages are also called ".NET Web forms." They can be identified in a web browser when the URL in the address field ends in ".aspx".

Common ASPX Filenames

Default.aspx - The default webpage loaded when a client browser requests a Web server directory on a Microsoft IIS-based server that uses ASP.NET. For example, when a client requests, the server loads, unless it is configured to load a different file.

List of all softwares that can open the Active Server Page Extended File
File Viewer Plus
Microsoft Visual Web Developer
Microsoft Visual Studio 2017
ES-Computing EditPlus

How to Open .ASPX file on different platforms

Open .ASPX File on Windows

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

Open .ASPX File on Mac

  • Right-click (or Ctrl + Left-click) the .ASPX 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 .ASPX File on Linux

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

Open .ASPX File on iPhone

Select a file. If you don't see an application to open the .ASPX 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 .ASPX 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 .ASPX files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .ASPX files

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