Arf extension is associated with WebEx Advanced Recording File. There is chance to open arf files with Arf Player.

WebEx: It is a software which used for online conversations. The video files which created by this software are kept with arf extension.
It is possible to convert arf files to normal movie file. Or, you have chance to convert it to swf files. In this case, you may use WebEx or ARF player. 

Similarly, .wrf files are also log files which saved by WebEx. To get detailed information about the WebEx, please check the following web page.

What to use arf

Arf player

which page related to arf file

arf Related Searches

You can check related links about arf fileextension.