App description


++++++++++++++ NEW in version 1.2 +++++++++++++++++++++++


*** All new design in typical Windows 7 Phone style (including new stunning page transitions)

*** Faster and optimized search

*** New extension favorite page (Organize your favorite extensions. Add, delete or research your extensions both online or offline)


*** New settings page for defining your favorite search engine. You can choose between Google, Bing or Yahoo. Also you can define the favorite addition behaviour

*** Get back to the initial application web search with one click after using the integrated web browser search and surving around


*** All new features easy accessible using the new application button bar on each page

With this app unknown file extensions can be searched and identified.


The app accesses a local offline database with over 10,000 extensions.

Additionally if the phone internet access is available an online database can be queried using the file extension website online service to get more actual results. (

Got a mail with a mail attachment with an unknown (possibly even "dangerous") file extension?


Time to clean up the hard drive but before deleting the file try to check and open it.

But what is the right program, if not installed and assigned to the extension ?

A careless double-click is not always recommended.

Extensions such as .doc, .pdf or .exe are almost known by everyone but what about the other tens of thousands unkown file extensions?


After the search, the file extension and all found matches including a description are displayed in a list. Because of different meanings for one extension all related hits will be determined.

Additional information can be obtained by clicking on a hit line.

On a detail page the file extension with an explanatory long form, the associated program and the operating systems, the assigned program is available for will be displayed.


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免費玩FileExtensionApp App

FileExtensionApp APP LOGO

FileExtensionApp LOGO-APP點子

FileExtensionApp APP QRCode

FileExtensionApp QRCode-APP點子
台灣 TaiwanWindows
Windows 市集