Is There an Opensource Manual Calculation of AES-128 bit? Is There an Opensource Manual Calculation of AES-128 bit as in Cronos

I have to learn calculations manually.
Project Nayuki has an Excel sheet in binary, XML and OpenDocument format. The code doesn't include any  Vusial Basic or Macros, they used only the spreadsheet's math functions; VLOOKUP, BITXOR, DEC2HEX, and HEX2DEC.

They have also, a nice video for AES on Youtube and a flash animation if you can run somewhere.