I made a web service in LPC 1768 and I also have 2Mb Flash storage in my board (IC is AT45db160),which, I used it for saving variables. Now I want to return all variables in Flash as an Excel file.
I used a SD card for my FTP unit. compiler is KEIL (implemented by RL-ARM). board designed by my company which includes a USB device, Ethernet port, Flash IC and SD card slot.
you can have a storage in RAM or FLASH . for more information read up it
and after that I can make a file in FLASH for creating report file.