You can download it from here: http://www.irfanview.com
Viewing the files:
- IrfanView has a Thumbnails option: "C:\Program Files (x86)\IrfanView\i_view32.exe" /thumbs
- It works as an image browser and the Windows Explorer
- You can preview all the RAW files in thumbnail instead of open them one by one.
Converting the files:
- You can open an image and select "Save as..." from the File menu
- For Batch conversion, press "B" in either the image view or thumbnails view to open the Batch conversion window. The following image will give you an idea how to do it
