XAP files store plugin installation packages for web browsers that support Microsoft Silverlight standard.
Silverlight was capable of running code written in Java and other programming language (for example, Python). The framework also offered:
Most web browsers offered dedicated plugins for Silverlight, including Google Chrome, Internet Explorer, Firefox, Safari, or SeaMonkey. Modern Chrome and Firefox browsers no longer support this technology, and Microsoft’s own Edge browser has no support for it whatsoever.
XAP files are now typically used for distributing apps for Windows Phone 7. XAP store apps compressed into ZIP archives along with XAML documents and DLL libraries used by Microsoft mobile development environment.
The following list contains programs grouped by 2 operating systems that support XAP files. Files with XAP suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.
There can be multiple causes why you have problems with opening XAP files on given system. Fortunately, most common problems with XAP files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The list below will guide you through the process of addressing the encountered problem.
The most common reason for such problems is the lack of proper applications that supports XAP files installed on the system. This issue can be addressed by downloading and installing Microsoft Silverlight or different compatible program, such as Microsoft Windows Phone, Microsoft Visual Studio. The full list of programs grouped by operating systems can be found above. If you want to download Microsoft Silverlight installer in the most secured manner, we suggest you visit Microsoft Corporation website and download from their official repositories.
You still cannot access XAP files although Microsoft Silverlight is installed on your system? Make sure that the software is up to date. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. If you have an older version of Microsoft Silverlight installed, it may not support XAP format. The latest version of Microsoft Silverlight should support all file formats that where compatible with older versions of the software.
After installing Microsoft Silverlight (the most recent version) make sure that it is set as the default application to open XAP files. The next step should pose no problems. The procedure is straightforward and largely system-independent
Selecting the first-choice application in Windows
Selecting the first-choice application in Mac OS
You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper XAP file. Being unable to access the file can be related to various issues.
Should it happed that the XAP is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the XAP file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.
If you obtained the problematic XAP file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with XAP extension was interrupted and the file data is defective. Download the file again from the same source.
Some files require elevated access rights to open them. Log out of your current account and log in to an account with sufficient access privileges. Then open the Silverlight Application Package file.
If the system is under havy load, it may not be able to handle the program that you use to open files with XAP extension. In this case close the other applications.
Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Silverlight Application Package file. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle XAP files.
If you have additional information about the XAP file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on XAP file.