What is an ASPX file?

We look at what this web file does and how it can be viewed...

Web URLs

Creating a website can be particularly challenging, even for developers, as they need to run multiple types of configurations when building one. Active Server Pages (ASPX), is a good example of one such config file, used by servers running the Microsoft ASP.NET web framework - an open source framework that's used to create applications with the .NET and C# languages.

Unless they're being used to configure a web server, and back-end configuration, users won't need to interact with ASPX files or even see them at all. If a user can see them, it's usually a signal that something is wrong with the server or the website they're trying to connect to.

ASPX files and the ASP.NET framework were designed by Microsoft in the knowledge that users of the open source Visual Code Studio would have most likely experienced these elements. It doesn't cost anything to use, but developers may opt for commercial software that supports ASP.NET, such as Adobe Dreamweaver.

The Common Language Runtime (CLR) is the base layer for the ASP.NET framework, and allows developers to write code using any associated .NET language. This ensures that it remains a highly flexible system.

The foundational layer for ASP.NET is the Common Language Runtime (CLR), which allows developers to write ASP.NET code using any associated .NET language. This ensures the framework remains a highly versatile system.

How to open an ASPX file

ASPX is an uncommon file extension to open in Windows. Often, if such a file is downloaded, it may be another type of file (such as a PDF). In which case, to open it, you could simply rename the file with the correct file name extension. If you were expecting an image, then you can try to rename it with a .jpg file extension.

Renaming a file type in Windows 10

This problem of this misnaming could be down to a browser plug-in or the browser itself. If this problem keeps happening, it may be best to try the same website but with a different browser (preferably one with a different rendering engine). If you are using Internet Explorer, Chrome, Safari, or Firefox, try using one of the other three.

Opening APEX files with Adobe Dreamweaver 

Adobe Dreamweaver is a popular web development platform that can also be used to open the ASPX files. It lets users create and publish web pages with HTML, CSS, Javascript and more, quickly and from almost anywhere.

It has a smart, simplified coding engine, with hints and tips to help users get to grips with HTML, CSS and other web standards. However, Adobe is a paid-for service and a subscription to Dreamweaver will set you back £19.97 per month.

Opening APEX files with Notepad++

Notepadd++ is a free source code editor and replacement for Notepad with support for several languages, including CGI format. It is based on the editing component Scintilla and written in C++. It offers a higher execution speed and smaller program size due to its use of Win32 API and STL.

Other types of ASPX files (and what to do with them)

If you see in a browser bar a URL with .aspx at the end, this means that the page itself is being run as part of an ASP.NET framework, and there is no need to open it yourself as the browser should do this automatically. The code inside the file is processed by the webserver running ASP.NET.

If you need to open and edit a .aspx file, then you can use Microsoft's free Visual Studio to do so. You could also open up such a file using a normal text editor.

How to convert an ASPX file to PDF

Converting ASPX to PDF in Chrome

There are a number of different converters to change ASPX to PDF, but its often simpler to just use a browser, like Chrome. The ASPX file just needs to be simply dragged and dropped into the browser bar where one would enter a URL. Once the new browser window opens, press ctrl+P to print. Under destination of said printing window click on 'Change' and then save it as a PDF.

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