.xls or .xlsx for Excel spreadsheets. .dbf for dBase databases. .bat for Batch files. .bmp for Bitmap files. There are a huge amount of others.
The extension. It tells Windows what kind of a file it is. For example, a file with the ".doc" extension is a Microsoft Word Document.
An example of a file would be 'example.docx', which is a file name with an extension for Microsoft Wordtm 2007-2010 on both the Mac and PC.
Program file extensions simply identify the type of program. For example, an executable program will have a file extension of .exe, and some music files will have the file extension of .mp3
What is the file extension What is the file extension
It doesn't use any part of the file. It gets the extension (the part after the dot) of the file name, and looks that up in the registry to see what program should be used to open, for example, a .doc file.
A file name is the main name given to a file, such as document.docx. The file extension, represented by the characters after the dot, indicates the type of file and helps the operating system identify which software to use to open the file. For example, in document.docx, ".docx" is the file extension indicating that it is a Microsoft Word document.
Extensions are small programs which can run inside Photoshop. Example is Mini Bridge, Kuler in Photoshop CS5 but there are and many 3rd party extensions. Sometimes people refers to file format as extension or file extension like .csh extension for example to save Custom Shapes.
file extension for video is 101
For most typical Word documents the extension is .docFor Excel workbooks (spreadsheets) the extension is .xlsIn general the file extension is the 3 letter/number "code" after the period in the complete file name that gives a hint as to what type of file it is. For example, in the file name resume.docthe word resume is the file's actual name and the .doc tells you that it is a document file.
.html, .php, or .htm
The file extension tells about the type of file, with the extension three letters. For Eg:- *.txt -- text file *.exe-- executable file
file extension