ASMX file format description
Many people share .asmx files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .asmx file can be edited, converted or printed with. On this page, we try to provide assistance for handling .asmx files.
1 filename extension(s) found in our database.
.asmx - ASP.NET Web Service
The ASMX development files are related to Visual Studio - Visual Web Developer. ASMX file is an ASP.NET Web Service. ASMX file contains the WebService directive, which identifies the public class that implements the Web service logic. ASP.NET was first released in January 2002 with version 1.0 of the .NET Framework, and is the successor to Microsoft's Active Server Pages (ASP) technology. (ASP is the server-side execution environment in Microsoft Internet Information Server that enables you to run scripts on the server.)
- Application:
- Visual Studio - Visual Web Developer
- Category:
- Development files
- Mime-type:
- text/plain
- Magic:
- - / -
- Aliases:
- -
- ASP.NET Web Service related extensions:
Naturally, other applications may also use the .asmx file extension. Even harmful programs can create .asmx files. Be especially cautious with .asmx files coming from an unknown source!
Can't open a .asmx file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Windows can't open this file:
example.asmx
To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.
To avoid this error, you need to set the file association correctly.
- Open Control Panel > Control Panel Home > Default Programs > Set Associations.
- Select a file type in the list and click Change Program.
The .asmx file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
smx, amx, asx, ashx, asm
Is it possible that the filename extension is misspelled?
Similar file extensions in our database:
- .smx
- SysMetrix Skin
- .smx
- STATISTICA Matrix File
- .amx
- Adobe Motion Exchange Video
- .asx
- Advanced Stream Redirector
- .amx
- AMX Mod Plugin
- .asx
- Alpha Five Database Index
Operating systems
DataTypes.net currently supports the following operating systems:
Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android
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