Yes, the hex2c utility can be safely modified to process files larger than 64KB. To modify the utility:
1. Open the hex2c.dsw with Visual C++. This project is found under the Cypress\Usb\Utils\hex2c directory.
2. Change #define MAX_FILE_SIZE (64 * 1024) to #define MAX_FILE_SIZE (XXX* 1024) // xxx is some digit larger than 64.
3. Recompile the project.
With the newly-created tool, you can process the bigger hex file.