| zw5 | EPLAN Project Backup |
| zw6 | EPLAN Parts Backup Data |
| zw7 | EPLAN Dictionaries Backup Data |
| zw8 | EPLAN Configuration Data Backup |
| zw9 | EPLAN Basic Project |
| zwo | Zwift Cycling Workouts Data |
| zx | KGB ZX Spectrum Emulator Snapshot |
| zx82 | Speculator 97 Snapshot |
| zxc | Components Engine Database |
| zxe | ZX-Editor Second Edition Format Data |
| zxl | Immersioni Dive Logbook Data |
| zxs | ZX Spectrum Emulator ZXS Snapshot |
| zys | Business Integrator Database |
| zzd | ISIS Detailed Convergence Data |
| zzj | ISIS Outputs Matrix Coefficients Data |
| zzo | ISIS Control Unit Data |
| zzr | ZoneAlarm MailSafe Renamed File |
| zzs | ISIS Initial Conditions Data |
| zzs | MultiView Script |
| zzt | ISIS Unit Data Store |
| zzx | ISIS Results Data |
| ^^^ | Pervasive.SQL Database |
| _vc | ViewChoice Data |
| __a | File Splitter & Joiner Encrypted File |
| __b | File Splitter & Joiner Encrypted Archive |
| {pb | Corel WordPerfect Document Index |
| ~cr | CardRecovery Temporary File |
| ~cw | Circuit Wizard Backup |
| ~hm | HostMonitor TestList Backup |
| ~si | Powersim Studio Project Backup |
