What is .CXF file extension?
File created by Picasa, a free image editor and image sharing program developed by Google; created alongside the .JPG image when the user saves a collage; stores paths to the images that were used to create the collage, as well as the positions of the images in the collage.
If you move a collage JPG file, you should also move the associated CRX file or the collage will not be reconstructed properly in Picasa from the new location. Therefore, make sure to copy the CRX file when moving your collages.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.