Filename extensions provide metadata about how files should be stored and used. The extension is typically the substring that follows the last period in the filename, and indicates the file type. Different file systems have their own rules for determining what constitutes the extension.

1. computers
Filename extensions can be considered a ilk of metadata. They are commonly acclimated to
to imply dirt about the technique figures superiority be stored in the file. The exact definition,
giving the criteria for the sake of deciding what side of the column name is its widening,
belongs to the rules of the particular filesystem used; commonly the stretching is the
substring which follows the last instance, if any, of the punctually stamp (prototype: txt is the
extension of the filename readme.txt, html the increase of mysite.index.html).
http://www.filedesk.org/en/file/aceonline-exe,http://www.filedesk.org/en/file/aceonline-exe
http://www.filedesk.org/en/file/acepde-dll,http://www.filedesk.org/en/file/acepde-dll
http://www.filedesk.org/en/file/acer2x-dll,http://www.filedesk.org/en/file/acer2x-dll
http://www.filedesk.org/en/file/acer3x-dll,http://www.filedesk.org/en/file/acer3x-dll
http://www.filedesk.org/en/file/acerclr-dll,http://www.filedesk.org/en/file/acerclr-dll
http://www.filedesk.org/en/file/acerep-dll,http://www.filedesk.org/en/file/acerep-dll