ASPX File Extension

ASPX file icon
Active Server Page Extended Format
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    3.9 (11 votes)

What is ASPX file?

ASPX is an extended version of Active Server Page. ASPX file format is developed by ASP.NET which is an open source Web application which is based on server side framework. The main purpose of this application is to develop dynamic websites, web based services and applications.

The programming language used in this framework is ASP and the files that save the source code are stored with .ASPX file extension. The working of ASPX file is similar to that of ASP but in ASPX a static HTML markup and other markups are added in the source file. Any browser can be used to open ASPX file.

Programs which support ASPX file extension

Below you will find an index of software programs that can be used to open ASPX files divided into 3 categories according to system platform supported. Files with ASPX suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Updated: 09/02/2019

How to open file with ASPX extension?

Problems with accessing ASPX may be due to various reasons. What is important, all common issues related to files with ASPX extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Get the Microsoft Visual Studio

The most common reason for such problems is the lack of proper applications that supports ASPX files installed on the system. The most obvious solution is to download and install Microsoft Visual Studio or one to the listed programs: Adobe Dreamweaver, EditPlus, Microsoft Internet Explorer. Above you will find a complete listing of programs that support ASPX files, classified according to system platforms for which they are available. The safest method of downloading Microsoft Visual Studio installed is by going to developer’s website (Microsoft Corporation) and downloading the software using provided links.

Step 2. Verify the you have the latest version of Microsoft Visual Studio

You still cannot access ASPX files although Microsoft Visual Studio is installed on your system? Make sure that the software is up to date. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. This can be one of the causes why ASPX files are not compatible with Microsoft Visual Studio. The most recent version of Microsoft Visual Studio is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Associate Active Server Page Extended Format files with Microsoft Visual Studio

If you have the latest version of Microsoft Visual Studio installed and the problem persists, select it as the default program to be used to manage ASPX on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Selecting the first-choice application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the ASPX file
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • To finalize the process, select Look for another app on this PC entry and using the file explorer select the Microsoft Visual Studio installation folder. Confirm by checking Always use this app to open ASPX files box and clicking OK button.

Selecting the first-choice application in Mac OS

  • From the drop-down menu, accessed by clicking the file with ASPX extension, select Information
  • Find the Open with option – click the title if its hidden
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • A message window should appear informing that This change will be applied to all files with ASPX extension. By clicking Continue you confirm your selection.

Step 4. Ensure that the ASPX file is complete and free of errors

Should the problem still occur after following steps 1-3, check if the ASPX file is valid. It is probable that the file is corrupted and thus cannot be accessed.

1. The ASPX may be infected with malware – make sure to scan it with an antivirus tool.

Should it happed that the ASPX is infected with a virus, this may be that cause that prevents you from accessing it. Scan the ASPX file as well as your computer for malware or viruses. ASPX file is infected with malware? Follow the steps suggested by your antivirus software.

2. Ensure the file with ASPX extension is complete and error-free

If the ASPX file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with ASPX extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Active Server Page Extended Format file.

4. Make sure that the system has sufficient resources to run Microsoft Visual Studio

If the system is under havy load, it may not be able to handle the program that you use to open files with ASPX extension. In this case close the other applications.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Active Server Page Extended Format file. It may be the case that the ASPX files work properly with updated software that addresses some system bugs.

Conversion of a ASPX file

File Conversions from ASPX extension to a different format
File conversions from other format to ASPX file
Do you want to help?

If you have additional information about the ASPX file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on ASPX file.

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