ASMX File Extension

ASMX file icon
ASP.NET Web Service Format
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What is ASMX file?

Full format name of files that use ASMX extension is ASP.NET Web Service Format. ASP.NET Web Service Format format was developed by Microsoft. Files with ASMX extension may be used by programs distributed for Linux, Mac OS, Windows platform. ASMX file belongs to the Web Files category just like 303 other filename extensions listed in our database. The most popular program for handling ASMX files is Visual Web Developer, but users can choose among 13 different programs that support this file format.

Programs which support ASMX file extension

The list that follows enumerates programs compatible with ASMX files, divided into 3 categories based on operating system on which they are available. Files with ASMX extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

How to open file with ASMX extension?

Being unable to open files with ASMX extension can be have various origins. Fortunately, most common problems with ASMX files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. We have prepared a listing of which will help you resolve your problems with ASMX files.

Step 1. Download and install Visual Web Developer

The most common reason for such problems is the lack of proper applications that supports ASMX files installed on the system. The most obvious solution is to download and install Visual Web Developer or one to the listed programs: Adobe Dreamweaver, ASP.NET, Microsoft Visual Studio. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. If you want to download Visual Web Developer installer in the most secured manner, we suggest you visit website and download from their official repositories.

Step 2. Check the version of Visual Web Developer and update if needed

If you already have Visual Web Developer installed on your systems and ASMX files are still not opened properly, check if you have the latest version of the software. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why ASMX files are not compatible with Visual Web Developer. The most recent version of Visual Web Developer is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open ASMX files to Visual Web Developer

If the issue has not been solved in the previous step, you should associate ASMX files with latest version of Visual Web Developer you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Selecting the first-choice application in Windows

  • Right-click the ASMX file and choose Open with option
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • Finally select Look for another app on this PC, point to the folder where Visual Web Developer is installed, check the Always use this app to open ASMX files box and conform your selection by clicking OK button

Selecting the first-choice application in Mac OS

  • By clicking right mouse button on the selected ASMX file open the file menu and choose Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • Select the appropriate software and save your settings by clicking Change all
  • If you followed the previous steps a message should appear: This change will be applied to all files with ASMX extension. Next, click the Continue button to finalize the process.

Step 4. Verify that the ASMX is not faulty

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the ASMX file in question. Problems with opening the file may arise due to various reasons.

1. Check the ASMX file for viruses or malware

Should it happed that the ASMX is infected with a virus, this may be that cause that prevents you from accessing it. Scan the ASMX file as well as your computer for malware or viruses. If the scanner detected that the ASMX file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Verify that the ASMX file’s structure is intact

Did you receive the ASMX file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. It could happen the the download process of file with ASMX extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open Visual Web Developer

If the systems has insufficient resources to open ASMX files, try closing all currently running applications and try again.

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

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with ASP.NET Web Service Format files. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle ASMX files.

Do you want to help?

If you have additional information about the ASMX 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 ASMX file.

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