The software lies within Design & Photo Tools, more precisely Viewers & Editors. We recommend checking the downloaded files with any free antivirus. This free Mac application was originally designed by Paul Fabris.
From the developer:
CS1ToCR2 is designed to tag GPS log files from the Sony GPS-CS1 device and match them up to RAW (CR2) image files captured on the Canon SLRs, on a Mac OS X computer. The Sony GPS-CS1 captures GPS data in a modified version of the NMEA GPS format. This data is captured to log files and retrieved from the GPS-CS1 onto your local hard drive.
You may want to check out more Mac applications, such as Cuadro or Resize Now, which might be similar to CS1ToCR2.