What is a WIXPROJ file?
A .WIXPROJ file is a WiX Project File. Developers use it to create Windows installation packages. The Outercurve Foundation previously supported the WiX Toolset, which relies on these files. These project files store configuration rules in an XML format.
How to open WIXPROJ files?
viewer.online/wixproj analyzes .WIXPROJ files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
On a desktop computer, developers typically open these files using Microsoft Visual Studio with the WiX extension. Because the file stores data as plain text, you can also inspect it with code editors like Visual Studio Code or Notepad++.
Best practices and troubleshooting
If your computer refuses to open a .WIXPROJ file, check that the WiX Toolset is installed correctly. Version conflicts can also prevent projects from loading. If you are unsure about the contents, we recommend viewer.online/wixproj to identify the actual format of the user's file.
Summary
Because .WIXPROJ files use the known UTF-8 format, viewer.online/wixproj can safely open and display them online, eliminating compatibility problems.