I took some pictures of my son's high school graduation last night on a borrowed Canon PowerShot ELPH 300 HS. I would like to transfer those pictures to my laptop so I can post them on FB and share them with family. I'm about ready to pull my hair out!! Can someone please tell me how I can do this? I put the little data card into my laptop and I see the files, but they're .CTG files. They won't open as pictures, I've tried changing the file extension to .JPG and even burning them to a CD. Any help would be appreciated!

What is the CTG file in Canon SD card? - Photography

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.CTG files contain image catalog information that is used by the camera when managing and displaying photos. You'll probably find a .ctg file for each set of images created.

The .CTG files should get deleted automatically when the associated images are erased, although it seems that current best practices are to format the memory card often so I wouldn't worry about the .CTG files.

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So those are not the pictures, they are data associated with the pictures.