.EXIF File

The exif file extension is used for Exchangeable image file format. It is a standard that specifies the formats for images, sound, and ancillary tags used by digital cameras (including smartphones), scanners and other systems handling image and sound files recorded by digital cameras. 

Files with exif extension are known as Exchangeable image file format. 

How to open:

Use Adobe Photoshop to open files with exif extension.

How to convert:

There is no specific information in the database, about how to convert this file extension. For general information try to look at:Basic info how to convert bitmap files