The file 'ESP32 + OLED 3D Printer Model' is (stl) file type, size is 512.8KB.
ESP32 OLED Wemos Module (as the basis for a housing)
https://de.aliexpress.com/item/Lolin-ESP32-OLED-wemos-for-Arduino-ESP32-OLED-WiFi-Modules-Bluetooth-Dual-ESP-32-ESP-32S/32807531243.html