ASPX File (What It Is and How to Open One)
Dec 10, 2008 · An ASPX file is an Active Server Page Extended file. Open one with your web browser or a text editor like Notepad++. Convert it to HTML, ASP, and other similar formats using Visual Studio. This article explains what ASPX files are and how they're used, what to do if you download one by mistake, and how to convert one to a more usable format.
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