File extension xpi

File extension xpi is one of the file extensions that define type of the file and its contents.

File extension xpi refers to the Extension Archive files. They are primarily associated with the web browsers like Mozilla Firefox. These files are the compressed installation archives which are used by browsers like Firefox, Thunderbird and SeaMonkey. The contents of these files may vary from primary software component programs to the software extensions like the web plug-ins. There is a very simple way of opening such files. They can be simply dragged and dropped into the window of a web browser. The browser will itself open the file.

Similarities of these files with .zip files

The files with the File extension xpi are actually very much similar to the zip files. They are also compressed files which is responsible for their small sizes. Thus, when they are opened, they first need to be decompressed and only then they can be accessed. When these files are opened in a web browser, they use some add-ons. The most common ones used by them are Alexa and PR add-on indicators. They also make use of some of the other types of plug-ins which are essential to the working of the Mozilla applications.

So, how do these files work?

These files install a browser extension when they are opened in a web browser. To gain access to and to install the local version of such files, opening them in any web browser like Firefox is the best way to go. In general cases, a file like this will automatically get installed into the system through the web browser and will be available for general use after the browser is restarted once.

So, how is this file format different from the other .zip files?

In technical terms, the File extension xpi is nothing but the renamed versions of the ZIP files and this is the reason why any program meant for the compression or archive purpose will open the XPI file for decompression, once the File extension xpi file is renamed from XPI to ZIP. The . xpi files are meant to provide extendibility to the browser. Thus, these files can be easily accessed through 2 different ways. Firstly, by opening them in an appropriate web browser where they get automatically installed and secondly, by renaming their extension to ZIP and then decompressing them with any archive program.

Confused about File extension xpi? Want to learn more about what file extensions are, how Windows and computers work? You can start by reading our knowledge base articles about these topics in our knowledge base which is regularly updated with new content.

Files on computers are grouped together into folders. Folders can contain files or other folders within them. Folders help keeps your computer files organized. Learn more about files and folders.

Files can contain different kinds of information – text documents, spreadsheets with numbers, pictures, videos, music, maps, etc… In order to tell which file contains which data, file extensions are used. File extension is a part of a file name that comes after the last dot. Examples of file extensions are JPEG, DOC, MP3, MP4, etc. A rough analogy would be person’s last name. Just like it, file extension identifies which “family” of files, specific file belongs to. Learn more about file extensions.

From computer’s point of view all files contain just long strings of numbers. It is computer applications (aka software) is what translates these numbers into useful, text images, and sounds. In order to open the file correctly, computer must use correct application that is appropriate for a file type (Word processor for text documents, photo application for image files, etc). Each file extension is assigned main default application that opens it and a number or additional applications that user can choose from. Information about these assignments is stored in Windows Registry. Failure to open files often results from Windows registry being corrupted. Learn more about Windows Registry.






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