the author of this app says:
An explorer-like application to preview Canon (c) DSLR RAW-Files.
View, share and save the embedded jpeg-images.
Fullscreen view to switch thru the images and show EXIF-informations.
USABLE WITH CR2-FILES ONLY !
FIRST TRY THE DEMOVERSION, IF IT SUITS YOUR NEEDS AND WORKS AS EXPECTED ON YOUR DEVICE !!!
* Preview the embedded jpeg images in folderview
* Screen rotation in folderview
* Selectable thumbnail size
* Show fullscreen preview
* Show extracted EXIF data
* Save as jpeg with selectable folder
* Backup-like function to copy cr2-files
* Share the image, e.g. mail or bluetooth
* Delete images
* "Multiselect" for saving, sharing and deleting images