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List of common mobile phones related file extensions

Files typically encountered in various mobile platforms, including Android, iOS, Windows Phone, Blackberry OS or similar.

Common mobile phone related files may change in time as the popularity and significance of some formats can change.
Whole category of mobile phone related files contains now 96 file types. Show all mobile phones related file types.

apk file icon apk 

An apk file extension is used for Google Android application packages for Android based devices. apk files are basically a renamed zip files, used to install apps to Android smart phones.

asec file icon asec 

An asec file extension is used for Android encrypted application packages. ASEC file format was introduced in Android 2.2 that is able to move applications on SD card installed in Android phone. Applications stored on SD Card use ASEC encryption as a prevent against modifying and corruption. ASEC encrypted applications can be run only on Android phone, where have been installed, or in Android SDK emulator. If you move application back from SD card to phone's local storage, Android decrypted the ASEC application file to standard APK application package.


Files with bbb extension can be generally found as backup files of Blackberry smart phone created in the Blackberry Link or Blackberry desktop software for PC or Mac.


Files with crypt suffix are most likely best know as chat history backups made from WhatsApp messaging app.

ipa file icon ipa 

An ipa file extension is generally used for application packages downloaded from Apple iTunes app store. The IPA is a container format that contains app installations.


An ipd file extension was used by Blackberry mobile phones for their backup files. Those files can be restored with the Blackberry Desktop Server. It was replaced by BBB format.

ipsw file icon ipsw 

An ipsw file extension is used for iPhone, iPad or iPod Touch software firmware update files. IPSW archive contains DSG Apple disk images with iOS system installation, updates and fixes that are installed to iOS device via iTunes.

mdbackup file icon mdbackup 

MDBACKUP file extension is mainly related to one of the backup formats used in iOS devices like iPhone.

nbh file icon nbh 

An nbh file extension is used for files that contain ROM upgrade data for HTC smartphones. Used for firmware update purposes.

nbu file icon nbu 

Files with nbu suffix can be usually found as old Nokia phone backups made using Nokia PC Suite 6.82 and higher.


File extension nomedia can be found in Android smartphones. These 0kb sized files are used to hide certain audio files so they do not appear in media player.


Files with npf suffix can be usually found as phone backup from certain Samsung phones.


Files with pkpass suffix are electronic versions of tickets for Apple Wallet/Passbook platform for iOS (iPhone, iPad) devices. Used as a digital pass for movie tickets, loyalty cards, boarding passes etc.

rem file icon rem 

Files with rem suffix were traditionally used encrypted files on Blackberry devices. You can encrypt them in your device or with use of Blackberry Desktop Software if you known encryption password.


Files with rsc suffix can be commonly found as resource files for various programs and platforms.

sbf file icon sbf 

An sbf file extension is used for backups created with the Sony Ericsson Backup and Restore program for Xperia smart phones. These files store backup of phone settings, MMS and SMS messages, phone book, call logs and applications.


An sis file extension is used for installation files for Symbian applications mainly used on Nokia Smartphones. SIS is abbreviation for Symbian Installation Source. An sis package contains all data needed to install Symbian app.


Files with sisx suffix can be typically found as executable installation files for mostly Symbian based mobile phones (Nokia, Motorola, Samsung).

thm file icon thm 

A thm file extension is used for files that contain themes for Sony Ericsson mobile phones. These files can be created with Sony Ericsson Theme Creator.

vcf file icon vcf 

Files with vcf suffix are almost always contacts saved in vCard format. Typically used various Personal Information Managers or e-mail clients (for example Outlook), as well as exported from mobile phones, for the purposes of sharing or migrating contacts from one device to another.

xap file icon xap 

Files with xap extension are mainly related to Windows Phone apps and Microsoft Silverlight installation resource files. Used for Silverlight apps.

This is a list of some the most common file types from this category and may change in time as the popularity and significance of some formats can change. Whole category of mobile phone related files contains now 96 file types. Show all mobile phones related files.

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