I am using RawTherapee 4.2.936 (RT 4.2.936 for Windows XP or newer 32-bit - fast) and it will not open any of my raw Canon CR2 files. In contrast Canon Digital Photo Professional opens them all. Does Rawtherapee offer any technical support? For me the software is unusable. Perhaps it does not run on a Windows 7 computer. Most bizarre!
masmd