The file extension contains a lot of important information for machines (by which we mean computer software as well as system and hardware platforms supporting them). This is the information about what type of data is encoded in a file with the specific extension.
For example: Extensions *.COM, *.BAT or *.EXE inform Windows system in a computer that it contains commands that are to be performed (these are executable files). In Linux-based systems a similar message will be presented by the extension *.SH. In addition to the executable files, in computer systems there are a number of file extensions that explicitly tell the system what software should be used to support them. These files are generally divided into several categories among which the most important are: text files, graphic files, audio files, and files containing multimedia data.
| File extension | The full name of the file |
|---|---|
| .KEYCHAIN | Apple Keychain Password Format |
| .DB | Database Format |
| .MP3 | Compressed Audio And Music File, Mp3 Songs Or Ringtones |
| .INDD | Adobe InDesign Document Format |
| .CSS | Cascading Style Sheets Format |
| .JAR | Compressed Archive Format Package For Java Classes And Data Format |
| .KEY | Licence Or Encrypted Security Format |
Just type in the search box the extension you are looking for (e.g.: APK or DJVU) - without any additional information, and you will be redirected to an appropriate site with the information about the file. (If only the file you're looking for is in our database)
Enter the source format, output format or fill in both fields. We will display a list of possible conversions or a list of applications to perform file conversion.
By default in all Windows systems the file extensions are OFF . To see the extension of all the files, you should follow the instructions below.
- In the Windows Explorer window, select the
"Organize"(in older versions of Windows, select the"Tools"). - Select
"Folder and Search Options". - Go to
"View". - The last step is to uncheck the
"Hide extensions of the known file types"and then press the OK button