ASEC file format description

Many people share .asec files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .asec file can be edited, converted or printed with. On this page, we try to provide assistance for handling .asec files.

1 filename extension(s) found in our database.

.asec - Android Secure External Cache

The ASEC archive files are related to Android. The ASEC file is an Android Secure External Cache. When we move android apps to locations outside of phone memory, they are stored in the .android_secure folder, with the .asec extension. Android most probably encrypts the application file when moving it to external storage to prevent you from copying it from one device to another, in a bid to stop piracy.

Application:

Android

Category:

Archive files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Android Secure External Cache related extensions:

.epo: Android GPS Extended Prediction Orbit Data
.lfs: Samsung Android Phone LFS File
.nomedia: Android No Media File

Naturally, other applications may also use the .asec file extension. Even harmful programs can create .asec files. Be especially cautious with .asec files coming from an unknown source!

Can't open a .asec file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:

example.asec

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

The .asec file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

aec, asc, asce, ase, asef, sec

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.asc: SOBEK RTC Communication Data
.asc: Neuroscan 3D ASCII Data
.aec: Cinema 4D After Effects Composition
.asc: Shimadzu LabSolutions ASCII Spectral Data
.sec: Migration Wizard Secondary IFF File
.asce: ASCE Data

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-asec-files

If you have useful information about the .asec file format, then write to us!