File Extension Database

Open ASPX File

File extension ASPX is used to denote files containing ASP.NET source code to be run on a web server (server-side scripts). This can be written in any of the languages supported by the .NET framework such as C#, and can range from simple web scripts to full-blown web service applications or rich internet applications. These ASPX scripts are usually developed within an Integrated Development Environment (IDE) such as Microsoft Visual Studio .NET, although they can be viewed and modified in any text editor as the code is written in plain text and is not compiled to machine code.

When a file with the ASPX extension is requested from a web server, the server will parse and execute the code, returning the results to the web browser for the user to view. This means the user of a web application does not get to see the underlying code of the application, only the results of running it. This is usually an (X)HTML page generated by the program containing the results of a database query or dynamically created images, for example.

As with any other web scripting or programming language, care must be taken when writing ASP .NET applications to avoid vulnerabilities that involve user input, especially where database queries are involved. There have been several well-known security issues where servers have become vulnerable due to badly written scripts, and this also works the other way round. Software vulnerabilities in the web browser software used to view web pages have often been exploited by utilising specially written scripts using ASP.NET or PHP for example. Although many vulnerabilities are fixed quickly upon discovery, there are nevertheless always risks associated with running code from untrusted sources so care should still be taken when browsing the internet or when writing server-side scripts.

Typical ASPX application file locations:

"g:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe" /dde
c:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe /dde
"C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe" /dde

Typical ASPX mime types:

application/xml

Frequently used application names to open ASPX files:

Microsoft Visual Studio 10.0
Microsoft Visual Studio 9.0

Frequently associated Windows objects:

VisualStudio.aspx.10.0
VisualStudio.aspx.9.0
XWeb.aspx.12.0

How Can I Open ASPX File on Windows

We researched and learned that the best way to open ASPX file is to find a ASPX file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a ASPX file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open ASPX file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as ASPX file opener then try to search online for "ASPX viewer", "application to open ASPX file" or "open ASPX file" queries in the search engine you like.
Install the application you found and check if it can open ASPX file

How Can I Open ASPX File on Mac OS

We recommend to find a ASPX file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a ASPX file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with ASPX file.
If you know the Mac OS application which can work as ASPX file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open ASPX file in it.
If you don't know the application which can open ASPX file then try to search for "ASPX viewer", "application to open ASPX file" or "read ASPX file" queries in the online search engine you like.
Install the application you found and check if it can read ASPX file

How Can I Open ASPX File on Android

If you downloaded a ASPX file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded ASPX file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "ASPX".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "ASPX viewer", "ASPX file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open ASPX File on iPhone or iPad

To open ASPX File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the ASPX file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "ASPX". This way you can find apps which can open ASPX files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "ASPX viewer" or "ASPX file" online in your favorite search engine.