File extension
From the Simple English Wikipedia, the free encyclopedia that anyone can change
A file extension is a way of knowing what type of file it is, and what program it should be opened with. File extensions are usually three letters long and come after the name of the file.
Some examples of common file extensions are:
- TXT files are text files
- HTML are hyper text markup lanuage files
- JPG are picture files in the JPG format
- MP3 are music files in the MP3 format
- MPEG are motion picture encoded video files
- DOC are documents in Microsoft Word format
- XLS are Excel Spreadsheet documents
- PPT are Power Point files
- EXE are MS windows executable program files
- ODT are Open Document text files
- ZIP are Compressed files (Lempel Ziff algorithm in an archive)
- DLL are Dynamic Link Libraries on (MS Windows)
- Z are Unix / Linux compress files
- bz2 are bzip2 block compressed files (very good compression)
- jar are Java archive files
- JSP are Java server pages files
- java are Java source code files
- class are Java compiled source code files
- oc are Java run-time library files
- tar are Unix / Linux tape archive files
- sh are Unix / Linux shell script files
- awk are Unix C like pattern processing language source code files
- sed are Unix stream editor command files
- lex are Unix / Linux lexical analyzer C code generator specification files
- c are C programming language source files
- o are C programming language compiled files
You can change the program defaults so that the computer knows which program to open each type of file extension with.