| .REX | Propellerhead | Audiodateien | ReCycle Loop File | Oracle Database | Oracle Corporation |
| .RMF | Valve | Spieldateien | Hammer Rich Map Format | Oracle Java Sound | Oracle Corporation |
| .RPE | Oracle Corporation | Textdateien | Performance Analyzer Data | Performance Analyzer | Oracle Corporation |
| .RUJ | Oracle Corporation | Textdateien | Oracle Recovery-Unit Journal File Format | Oracle Database | Oracle Corporation |
| .S11 | Interplay Entertainment | Spieldateien | Descent 2 Game Data | Unsealer | Oracle Corporation |
| .S1A | Oracle Corporation | Verschlüsselte Dateien | Sealed Acrobat Document | Unsealer | Oracle Corporation |
| .S1E | SealedMedia | Verschlüsselte Dateien | Sealed Excel Worksheet File | Unsealer | Oracle Corporation |
| .S1M | Yamaha Corporation | Audiodateien | Yamaha EX5 Waveform Data | Unsealer | Oracle Corporation |
| .S1N | SealedMedia | Verschlüsselte Dateien | Sealed PNG Graphic File | Unsealer | Oracle Corporation |
| .SAL | Oracle Corporation | Entwicklerdateien | SQL Application Language Source Code | MySQL | Oracle Corporation |
| .SDA | Oracle Corporation | Vektorbilddateien | StarOffice Drawing | StarOffice | Oracle Corporation |
| .SDD | Programming Sunrise | Textdateien | Smart Diary Suite Data File | StarOffice | Oracle Corporation |
| .SDG | Golden Software LLC | CAD-Dateien | Strater Project File | StarOffice | Oracle Corporation |
| .SDM | Oracle Corporation | Textdateien | StarOffice Mail Message | StarOffice | Oracle Corporation |
| .SDOC | Samsung Electronics | Textdateien | Samsung Memo File | Oracle IRM Desktop | Oracle Corporation |
| .SDP | Oracle Corporation | Textdateien | StarOffice Presentation File | StarOffice | Oracle Corporation |
| .SDS | Oracle Corporation | Textdateien | OpenOffice.org Chart | StarOffice | Oracle Corporation |
| .SECURITY | Oracle Corporation | Textdateien | Javasoft Jre 1.3 Lib Security Data | Java | Oracle Corporation |
| .SEM | Alpha Software | Entwicklerdateien | Alpha Five Set Data Dictionary Memo File | Unsealer | Oracle Corporation |
| .SEML | Oracle Corporation | Sonstige Dateien | Sealed EML Document | Oracle IRM Desktop | Oracle Corporation |
| .SFS | Open Source | Komprimierte Dateien | Squashfs File Archive | StarOffice | Oracle Corporation |
| .SGV | Oracle Corporation | Grafikdateien | StarOffice StarDraw 2.0 Picture Image File | StarOffice | Oracle Corporation |
| .SIZ | Oracle Corporation | Einstellungsdateien | Oracle 7 Configuration File | Oracle Database | Oracle Corporation |
| .SJP | Oracle Corporation | Verschlüsselte Dateien | Sealed JPG File | Oracle IRM Desktop | Oracle Corporation |
| .SJPG | Oracle Corporation | Verschlüsselte Dateien | Sealed JPG File | Oracle IRM Desktop | Oracle Corporation |
| .SMH | Oracle Corporation | Textdateien | Sealed MHT Document | Unsealer | Oracle Corporation |
| .SPD | AutoDesSys, Inc. | Sonstige Dateien | Form-Z Suspended Render Data | Unsealer | Oracle Corporation |
| .SPDF | Oracle Corporation | Verschlüsselte Dateien | Sealed PDF File | Oracle IRM Desktop | Oracle Corporation |
| .SPN | Corel | Einstellungsdateien | Corel WordPerfect Distribution Definition | Unsealer | Oracle Corporation |
| .SPP | Serif | Rasterbilddateien | Serif PhotoPlus Picture File | Unsealer | Oracle Corporation |
| .SPS | IBM | Textdateien | SPSS Program File | Oracle Database | Oracle Corporation |
| .SQL | Various Developers | Datenbankdateien | Structured Query Language Data File | MySQL | Oracle Corporation |
| .SQR | Oracle Corporation | Textdateien | SQL Program File | MySQL | Oracle Corporation |
| .SR | Sun Microsystems | Rasterbilddateien | Sun Raster Image File | Sun Operating System | Oracle Corporation |
| .SSW | Sony Mobile Communications | Sonstige Dateien | Sony Ericsson Firmware File | Unsealer | Oracle Corporation |
| .STD | Oracle Corporation | Vektorbilddateien | Apache OpenOffice Drawing Template | StarOffice | Oracle Corporation |
| .STI | Oracle Corporation | Textdateien | StarOffice Presentation Template | StarOffice | Oracle Corporation |
| .SUN | Sun Microsystems | Rasterbilddateien | Sun Raster Graphic File | Sun Operating System | Oracle Corporation |
| .SXD | ESRI | GIS-Dateien | ArcScene Document | StarOffice | Oracle Corporation |
| .SXG | Oracle Corporation | Textdateien | Apache OpenOffice Master Document | StarOffice | Oracle Corporation |
| .SXL | SealedMedia | Verschlüsselte Dateien | Sealed Excel Worksheet File | Unsealer | Oracle Corporation |
| .SXLS | Oracle Corporation | Spreadsheetdateien | Sealed Excel Spreadsheet | Oracle IRM Desktop | Oracle Corporation |
| .SXML | Oracle Corporation | Verschlüsselte Dateien | Sealed XML File | Oracle IRM Desktop | Oracle Corporation |
| .TBK | SumTotal Systems | Textdateien | ToolBook Project File | MySQL | Oracle Corporation |
| .TH | Open Source | GIS-Dateien | Therion Data File | Java | Oracle Corporation |
| .TMD | SoftMaker Software | Textdateien | TextMaker Document | MySQL | Oracle Corporation |
| .TRC | Microsoft Corporation | Datenbankdateien | SQL Server Trace File | Oracle Database | Oracle Corporation |
| .TRM | Oracle Corporation | Datenbankdateien | Oracle Trace Map File | Oracle Database | Oracle Corporation |
| .UBB | Oracle Corporation | Einstellungsdateien | BEA eLink Adapter Configuration Data | BEA eLink Adapter | Oracle Corporation |
| .VBOX | Oracle Corporation | Einstellungsdateien | Oracle VM VirtualBox Settings File | Oracle VM VirtualBox | Oracle Corporation |
| .VDI | Oracle Corporation | Diskimagedateien | VirtualBox Virtual Disk Image | Oracle VM VirtualBox | Oracle Corporation |
| .VHD | Microsoft Corporation | Entwicklerdateien | VHDL Source File | Oracle VM VirtualBox | Oracle Corporation |
| .VMDK | VMware | Diskimagedateien | Virtual Machine Disk File | Oracle VM VirtualBox | Oracle Corporation |
| .VOR | Sun Microsystems | Sonstige Dateien | StarOffice Template | StarOffice | Oracle Corporation |
| .XBD | Xerox | Textdateien | DocuWorks Binder File | Java | Oracle Corporation |
| .XER | Oracle Corporation | Textdateien | Primavera Project Management Proprietary Exchange Format | Primavera | Oracle Corporation |
| .XML-PREV | Oracle Corporation | Backupdateien | VirtualBox XML Settings Backup | Oracle VM VirtualBox | Oracle Corporation |
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