.ASCX File Extension

ASP.NET User Control File

Developer Microsoft
3.7  |  11 Votes

What is an ASCX file?

An ASCX file is a webpage that can be used as a component of other webpages. For example, a navigation bar called navbar.ascx might be referenced by all pages within an ASP-driven website. A single change to the navbar.ascx file would then change the navigation bar on all the website's other pages.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open or reference ASCX files

Verified by FileInfo.com

The FileInfo.com team has independently researched the ASP.NET User Control file format and Mac and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.