To help you get this simulation running perfectly, let me know:

Open Proteus and create a new schematic capture. Search for "RC522" or "RFID" in the pick-device keywords section ( P shortcut). The module will now appear in your list.

: Hosts a repository for Proteus Library For Arduino which includes various sensor modules often used in tandem with RC522 projects. Installation Procedure

Includes necessary SPI pins (SDA/SS, SCK, MOSI, MISO, RST, IRQ, GND,

By using the right custom library and properly linking your Arduino code, you can successfully simulate complex RFID projects within the Proteus environment.

Move both the .LIB and .IDX files of the RC522 model directly into this LIBRARY folder.

Proteus 8.13+ includes Visual Designer for Arduino. The top RC522 libraries are now compatible with the Flowchart mode. This allows you to drag-and-drop RFID blocks without writing a single line of C++.

If you only have .LIB and .IDX files, you'll be able to place the component on your schematic, but you won't be able to simulate its behavior.