Warning : Do format the MMC when Windows prompts you to do so, as this will destroy the Siemens-specific file system and data.
: Once unlocked, you can use the "Convert" or "Export" feature to save the data into a format compatible with Siemens STEP 7 or TIA Portal. unlock and converter mmc image s7
Tools commonly mentioned: Odin, Heimdall, TWRP, dd command in Android shell, or Windows tools like Win32 Disk Imager. Warning : Do format the MMC when Windows