ASCX File

What are ASCX files and how to open them

Are you having problems opening an ASCX file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is an ASCX file?

An .ASCX file is a Microsoft ASP.NET Web User Control file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open ASCX files

Important: Different programs may use files with the ASCX file extension for different purposes, so unless you are sure which format your ASCX file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested ten different ASCX openers which you will find listed below.

Last updated: February 24, 2023

Various apps that use files with this extension

These apps are known to open certain types of ASCX files. Remember, different programs may use ASCX files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about ASCX file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.