What Is An ASPX File?

It’s also called a .NET web form.

Although they look fairly similar, ASPX files aren’t the same as Web Handler files that end inASHX.

Person looking at aspx files on a computer

Derek Abella / Lifewire

In that case, one trick is to simply rename it to whatever you expect it to be.

If you expected an image, rename it toimage.jpg.

You get the idea.

Screenshot showing how to change the file extension of an ASPX file to PDF

Renaming ASPX to PDF.

To rename a file’s extension, your machine has to be set up to show the file extension.

This is explained in ourWhat Is a File Extension?article.

and present it for downloading as it should.

Screenshot of the text behind an ASPX web page

ASPX Sample Text.

You’re just manually taking that last step.

For example, if you’re using Edge, switch to Chrome or Firefox.

Another tool, although not free, is the popular Adobe Dreamweaver.

It can, however, be changed to a different file by an admin.

How to Convert an ASPX File

ASPX files have an explicit purpose.

Still Can’t Open It?

Be careful to avoid confusing other similarly named file extensions for one that ends with .ASPX.