Opening ASCX Files

The ASCX file type is primarily associated with ASP.NET.

ASCX	File extension: ASCX
	File type:	web user control

What is an ASCX file?

ASCX files mostly belong to ASP.NET by Microsoft. An ASCX file is a script containing a definition of custom, reusable user control for an ASP.NET-based web application. A user control is a single component of a website which is reused across multiple pages through the "include" directive. A single ASCX file contains the script and markup for a component such as a form, a navigation bar, or a web page footer which is imported into various web pages of a website. Visual Studio integrated development environment is the primary program for creating and editing an ASCX user control file.

How to open ASCX files

You need a suitable software like ASP.NET to open an ASCX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ASCX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ASCX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ASCX Text Viewer

Choose your .ascx file to view

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

How to extract texts from ASCX files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from ASCX file or capture a screenshot, you can use our free Online ASCX File Viewer:

Just click the "Choose your .ascx file to view" button on this page.
Your ASCX file will then be displayed in the browser.
Now click on "Save as..." at the top of the page.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert ASCX files:

ASP.NET by Microsoft
See the previous paragraphs to learn more about the main application. ASCX files are often referred to as ASP.NET web (source)s because this type of file is primarily created or used by this software.
Visual Studio (web user control) by Microsoft
Visual Studio is an integrated development environment compatible with macOS and Windows operating system. It saves the user control pages for an ASP.NET application in an ASCX file. This file format is classified as Web (source). Related links: Web Site File Types, ASP.NET User Controls

ASCX file format details:

Every file has a defined file format, i.e. how the data is arranged in the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. So a detailed analysis of a file is vital in order to determine the format and the associated program. Below you will find our evaluation of the ASCX files:

The ASCX file extension is rarely used and covers different formats for different programs. However, the following two file formats are common:

55% of all ASCX files are Microsoft ASP files, which are using the popular Source file format. A source code is the set of instructions written by a programmer using a computer programming language like JavaScript, C++ or Basic. This code is translated into machine language by a compiler. The translated result is called app, program or executable. These files are text files and can therefore be read using a text editor. Most of these files are 250 bytes to 49 KB in size. The file type was developed only in the last few years. The following keywords are characteristic: Control Language="C#", Inherits, AutoEventWireup, ascx, true and CodeBehind. These files are often associated with list.
20% of all ASCX files are based on the well-known HTML file format. HTML is short for HyperText Markup Language. It is the standard markup language for documents designed to be displayed in a web browser. The contents of these files are easily readable with a text editor. Most of these files are 14 KB to 35 KB in size. Several words can almost always be found in the files, e.g. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">, <head><style type="text/css">body { display : none;}</style>, <html lang="en">, <script type="text/java, <html> and title. These files can be linked to employment, history and data.

All the rest of the ASCX files (25%) have different formats. Sometimes used for employment, history, report or data. If you want to find out which format your ASCX file belongs to, just click on the button "Choose your .ascx file to view".

Technical Data for ASCX File Extension

File classification:

Web (source)

Related files:

acsx, aaxc, qscx, aspx, ashx, axd

Mime type:

application/x-aspx

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: ascxfile, AppName: Dreamweaver MX
EXEFile: Dreamweaver.exe

ProgramID: ascxfile, FileType: Web User Control, AppName: Microsoft Visual Studio .NET 2002
EXEFile: devenv.exe

ProgramID: ascxfile
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX 2004\Dreamweaver.exe %1

ProgramID: ascxfile
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX\Dreamweaver.exe %1

ProgramID: ascxfile
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET\Common7\IDE\devenv.exe /dde

ProgramID: BDS.ASCXFile
EXEFile: %ProgramFiles%\Borland\BDS\2.0\Bin\bds.exe /np

ProgramID: BDS.ASCXFile
EXEFile: %ProgramFiles%\Borland\BDS\3.0\Bin\bds.exe /np

ProgramID: VisualStudio.ascx.7.1
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX 2004\Dreamweaver.exe %1

ProgramID: VisualStudio.ascx.7.1
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET

ProgramID: VisualStudio.ascx.7.1
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET 2003\Common7\IDE\devenv.exe /dde

ProgramID: ascxfile
EXEFile: %ProgramFiles%\macromedia\dreamweaver mx 2004\dreamweaver.exe %1 does not exist.

ProgramID: VisualStudio.ascx.7.1
EXEFile: %ProgramFiles%\Visual Studio .NET 2003\Common7\IDE\devenv.exe /dde

ProgramID: VWDExpress.ascx.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\VWDExpress.exe /dde %1

ProgramID: VisualStudio.ascx.8.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 8\Common7\IDE\devenv.exe /dde %1

ProgramID: VisualStudio.ascx.8.0
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX 2004\Dreamweaver.exe

ProgramID: VisualStudio.ascx.9.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe

ProgramID: VWDExpress.ascx.9.0
EXEFile: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE\VWDExpress.exe

Show all 17 listings To Top

an ascx web user control is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with ASCX files

Associate the ASCX file extension with the correct application.
Update your software that should actually open web user controls. Because only the current version supports the latest ASCX file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available ASP.NET update.
To make sure that your ASCX file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ASCX file online - secure, fast, and no downloads needed.