A file editing system is provided. The file editing system includes: a first storage (41) for storing file contents; a primary display screen (31) for displaying the file contents thereon; a control device (20) for receiving commands and user comments taken regarding the file contents from a user; and a microcontroller unit (MCU, 10) for controlling the storing and displaying of the file contents and the user comments in accordance with the commands. The file editing system further includes a second storage (42) for storing the user comments under control of the MCU; and a secondary display screen (32) for displaying the user comments thereon under control of the MCU. A related file editing method is also provided.