PowerShot G12 - CTG format

[garithkart]

I have a Powershot G12 and the most recent photos I have taken show a .CTG format.  I cannot open this format version, and do not know how this format got changed from JPEG.  How do I return the cameral to JPEG?  Suggestions?

Thank you

Garith

[Stephen]

Please see the following thread that addresses this topic: CLICK ME