ASPX files aren’t frequent, but you’ll come across them if you download an app’s source code; you might find an APSX file or two there. Although most end users are unfamiliar with this file type, it is not difficult to open ASPX files.
ASPX files aren't frequent, but you'll come across them if you download an app's source code; you might find an APSX file or two there. Although most end users are unfamiliar with this file type, it is not difficult to open.

ASPX file

A server that is running ASP.Net generates an ASPX file. Instead of using the HTML language, this is essentially a webpage. When a website reads or loads a file in a modern web browser, it is processed and converted to HTML.

When it comes to opening an ASPX file, you’ll find it’s very simple. To complete the task, you do not need to set up a server or install any sophisticated software.

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1. Open ASPX Files – Web browser

A document is what an ASPX file is. It is only because of its length that you are unable to open it. Unlike HTML files, which can be opened using a text editor, ASPX files require the use of a PDF viewer.

  1. Open File Explorer.
  2. Go to the View tab.
  3. Enable the ‘Show extensions’ option.
  4. Navigate to the ASPX file and select it.
  5. Tap the F2 key. 
  6. Change the ASPX to PDF.
  7. Confirm you want to change the format.
  8. Right-click the file and open it in a modern browser like Chrome.

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2. Use web development tools

You can use a web development tool instead of converting an ASPX file to a PDF and opening it in a browser if the file does not display correctly. There are several web development tools available, but we strongly recommend Notepad++ if you’re searching for a free, easy-to-install, and easy-to-setup application.

  1. Download and install Notepad++.
  2. Open File Explorer and navigate to the ASPX file.
  3. Right-click the file and select Open with from the context menu.
  4. Select Notepad++ to open the file.

ASPX files aren't frequent, but you'll come across them if you download an app's source code; you might find an APSX file or two there. Although most end users are unfamiliar with this file type, it is not difficult to open.

3. Online web development tools

You can open ASPX files in your browser using web applications for web development. It is not necessary to convert them to PDF. Instead, the web app can read the APSX file in its current state. You don’t need to install any additional programs if you have a contemporary browser installed, such as Chrome or Firefox.

There are dedicated ASPX file viewers available, however they aren’t the most amazing internet tools available. To open an ASPX file in your browser, use File Pro Info’s ASPX viewer.

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Conclusion

Microsoft Visual Studio is the best software to use to read an ASPX file if you have it installed on your PC. Visual Studio will, of course, install a slew of other tools on your PC to aid development. If you’re not a developer, though, installing Visual Studio only to see an ASPX file is overkill. Instead, try one of the options we’ve provided for a far more straightforward method.