Open ASMX files

  • Full name
    Active Server Plus Web Services Source Format
  • Developer
  • Popularity
Have you encountered a problem with a ASMX file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a ASMX file here. In the further part of this page we have added a list of programs that should open your ASMX file. It is enough you choose a proper application for your operating system, download and install it.

What is ASMX file?

The file extension ASMX is used for so-called ASP.Net Web Services. ASMX is the support of XML based web services in the .Net framework. Asmx files are source code files for a .Net application that runs in the ASP.Net Runtime Host and which contain not only ASP.Net statements but also C # or Visual Basic code.

Programs which can open a ASMX file

How to open file with ASMX extension?

In order to open a file with ASMX extension one of the following programs must be installed on user’s system. If a problem with opening ASMX file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with ASMX files, follow the instructions below.
Install Visual Web Developer or other program from the list

Most often resolving problems with opening ASMX files is very simple. Just install an appropriate program that supports such files. All of the listed programs support ASMX files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of ASMX files or offer file conversion options, but may not be capable of editing such files.

Set Visual Web Developer as the default program for opening ASMX files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate ASMX files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Visual Web Developer applications is not on the list, select "Browse" option in order to manually locate the directory where Visual Web Developer has been installed.


Check the section that lists most common problems with ASMX files

Sometimes problems with opening ASMX files may not lie with the application itself, but can arise due to other causes, such as:

  • File data is corrupted
  • ASMX files has been not been completely download from the internet (only a part of the data has been downloaded)
  • Currently used user account hasn’t been granted necessary privileges to open ASMX files (should that be the case, please contact your system administrator or IT specialist)
  • ASMX file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)

Similar extensions