[lwip-users] Webserver with files

[Raketnet]

I'm using the FreeRTOS lwip Rowley demo on a AT91SAM7x evaluation board. 
The demo webserver is running good!
Now I'm making a webserver which loads the html page from a file. (fsdata.c)
This file contains the html files like this:

static const unsigned char data_index_html[] = {
        /* /index.html */
        0x2f, 0x69, 0x6e, 0x64, 0x65, 0x78, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0,
        0x3c, 0x21, 0x44, 0x4f, 0x43, 0x54, 0x59, 0x50, 0x45, 0x20, 
        0x48, 0x54, 0x4d, 0x4c, 0x20, 0x50, 0x55, 0x42, 0x4c, 0x49, 
        0x43, 0x20, 0x22, 0x2d, 0x2f, 0x2f, 0x57, 0x33, 0x43, 0x2f, 
        0x2f, 0x44, 0x54

It is working well, but now I like to change the website (the html). Which 
software can I use for generating the html file to the hex codes above? 
Where can I download this software?

Regards, Rick