| Extension Name | Extension Type | Category | Dev.Company | File Format |
|---|---|---|---|---|
| .DIF File Extension | MAME CHD Diff File | Game | The MAME Team | Binary |
| .HI File Extension | MacMAME High Scores File | Game | The MAME Team | Binary |
| .INP File Extension | MAME Replay File | Game | The MAME Team | Binary |
| .LAY File Extension | MAME Layout File | Settings | The MAME Team | Text |
| .LNG File Extension | MAME Language File | Data | The MAME Team | Binary |
| .NV File Extension | MAME NVRAM File | Game | The MAME Team | Binary |
| .STA File Extension | MAME Saved State File | Game | The MAME Team | Binary |
| .ZIP File Extension | MAME Game ROM | Game | The MAME Team | Zip |
| .CHD File Extension | MAME Hard Disk Image | Game | The MAME Team | Binary |