| .LRS | Open Source | File eBook | Librie Reader Source File | Check Point Full Disk Encryption | Check Point Software Technologies Ltd. |
| .SRP | Check Point Software Technologies Ltd. | File di settaggi | Checkpoint Exported VPN Client Information File | ZoneAlarm Pro | Check Point Software Technologies Ltd. |
| .Z0 | ZoneAlarm | File di dati | ZoneAlarm File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .Z1 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .Z2 | Infocom | File di giochi | Z-machine Z-code Version 2 File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .Z4 | Infocom | File di giochi | Z-machine Z-code Version 4 File | ZoneAlarm Pro | Check Point Software Technologies Ltd. |
| .Z6 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .Z9 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZAP | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Pro Data File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZL1 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZL2 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZL3 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZL6 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZL8 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZL9 | ZoneAlarm | File eseguibili | ZoneAlarm Quarantined EXE File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLA | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLB | AutoDesSys, Inc. | File con plugin | Form•Z Symbol Library File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLC | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLE | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLF | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLG | Open Source | File compressi | E-Surveiller Log Archive File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLJ | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLM | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLN | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLO | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLP | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLQ | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLR | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLT | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLV | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZLW | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZM2 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZM3 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZM4 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZM7 | Nintendo | File video | ZSNES Movie File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZM9 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMA | Interscape | File di dati | Impedance File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMB | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMC | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Quarantine File | ZoneAlarm Pro | Check Point Software Technologies Ltd. |
| .ZMD | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZME | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMF | Zoner Software | File con immagini vettoriali | Zoner Callisto Document | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMG | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMH | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMJ | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZML | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMM | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMN | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMP | Zoner Software | File con immagini vettoriali | Zoner Callisto Print Layout File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMQ | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMR | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMS | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMT | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMU | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMV | Nintendo | File video | ZSNES Movie File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZMX | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZN0 | Check Point Software Technologies Ltd. | File di dati | Zone Alarm Mailsafe Renamed File | ZoneAlarm Pro | Check Point Software Technologies Ltd. |
| .ZN2 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZN5 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZN9 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNA | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNC | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZND | Check Point Software Technologies Ltd. | File di dati | Zone Alarm Mailsafe Renamed File | ZoneAlarm Pro | Check Point Software Technologies Ltd. |
| .ZNE | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNF | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNI | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNM | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNN | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNO | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNP | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNR | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNS | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNU | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNV | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNW | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNX | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNY | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZNZ | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO0 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO1 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO2 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO3 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO4 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO5 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO6 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO7 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO8 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZO9 | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOA | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOC | Check Point Software Technologies Ltd. | File di dati | Zone Alarm Mailsafe Renamed File | ZoneAlarm Pro | Check Point Software Technologies Ltd. |
| .ZOF | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOG | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOK | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOL | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOM | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZON | Nuance | File di settaggi | OmniPage Zone Template File | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOP | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOR | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
| .ZOT | Check Point Software Technologies Ltd. | File di dati | Zone Alarm Mailsafe Renamed File | ZoneAlarm Pro | Check Point Software Technologies Ltd. |
| .ZOW | Check Point Software Technologies Ltd. | File di dati | ZoneAlarm Mailsafe Renamed Data | ZoneAlarm Antivirus | Check Point Software Technologies Ltd. |
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