Opening XAP files
Did your computer fail to open a XAP file? We explain what XAP files are and recommend software that we know can open or convert your XAP files.
What is a XAP file?
The XAP file format was developed by Microsoft for their Windows Phone OS (versions 7 and 8). This file format is used by Windows Phone as an executable program file for unpacking and installing third party apps in the device. Also known as application package files, these XAP files contain installer code, libraries, modules and resources that are used by the third party app during the installation and setup process.
These XAP files are also known as Microsoft Silverlight installation resource files. These are also used for installing Silverlight apps.
These XAP files do not contain human readable data. It's best to only use these XAP files for installing Silverlight apps and third party programs in Windows Phone 7 / 8.
Software that will open, convert or fix XAP files
Try a universal file viewer
In addition to the products listed above, I would suggest that you try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and very likely yours too! Download Free File Viewer.