| .S11 | Interplay Entertainment | Fişiere de jocuri | Descent 2 Game Data | Unsealer | Oracle Corporation |
| .S1A | Oracle Corporation | Fişiere criptate | Sealed Acrobat Document | Unsealer | Oracle Corporation |
| .S1E | SealedMedia | Fişiere criptate | Sealed Excel Worksheet File | Unsealer | Oracle Corporation |
| .S1M | Yamaha Corporation | Fişiere audio | Yamaha EX5 Waveform Data | Unsealer | Oracle Corporation |
| .S1N | SealedMedia | Fișiere criptate | Sealed PNG Graphic File | Unsealer | Oracle Corporation |
| .SAL | Oracle Corporation | Fişiere de programator | SQL Application Language Source Code | MySQL | Oracle Corporation |
| .SDA | Oracle Corporation | Fişiere de imagini vectoriale | StarOffice Drawing | StarOffice | Oracle Corporation |
| .SDD | Programming Sunrise | Fişiere de date | Smart Diary Suite Data File | StarOffice | Oracle Corporation |
| .SDG | Golden Software LLC | Fişiere CAD | Strater Project File | StarOffice | Oracle Corporation |
| .SDM | Oracle Corporation | Fişiere text | StarOffice Mail Message | StarOffice | Oracle Corporation |
| .SDOC | Samsung Electronics | Fişiere de date | Samsung Memo File | Oracle IRM Desktop | Oracle Corporation |
| .SDP | Oracle Corporation | Fişiere de date | StarOffice Presentation File | StarOffice | Oracle Corporation |
| .SDS | Oracle Corporation | Fişiere de date | OpenOffice.org Chart | StarOffice | Oracle Corporation |
| .SECURITY | Oracle Corporation | Fişiere de date | Javasoft Jre 1.3 Lib Security Data | Java | Oracle Corporation |
| .SEM | Alpha Software | Fişiere de programator | Alpha Five Set Data Dictionary Memo File | Unsealer | Oracle Corporation |
| .SEML | Oracle Corporation | Fișiere neobișnuite | Sealed EML Document | Oracle IRM Desktop | Oracle Corporation |
| .SFS | Open Source | Fişiere comprimate | Squashfs File Archive | StarOffice | Oracle Corporation |
| .SGV | Oracle Corporation | Fișiere grafice | StarOffice StarDraw 2.0 Picture Image File | StarOffice | Oracle Corporation |
| .SIZ | Oracle Corporation | Fişiere de setări | Oracle 7 Configuration File | Oracle Database | Oracle Corporation |
| .SJP | Oracle Corporation | Fişiere criptate | Sealed JPG File | Oracle IRM Desktop | Oracle Corporation |
| .SJPG | Oracle Corporation | Fişiere criptate | Sealed JPG File | Oracle IRM Desktop | Oracle Corporation |
| .SMH | Oracle Corporation | Fişiere text | Sealed MHT Document | Unsealer | Oracle Corporation |
| .SPD | AutoDesSys, Inc. | Fișiere neobișnuite | Form-Z Suspended Render Data | Unsealer | Oracle Corporation |
| .SPDF | Oracle Corporation | Fişiere criptate | Sealed PDF File | Oracle IRM Desktop | Oracle Corporation |
| .SPN | Corel | Fişiere de setări | Corel WordPerfect Distribution Definition | Unsealer | Oracle Corporation |
| .SPP | Serif | Fişiere de imagini rastru | Serif PhotoPlus Picture File | Unsealer | Oracle Corporation |
| .SPS | IBM | Fişiere de date | SPSS Program File | Oracle Database | Oracle Corporation |
| .SQL | Various Developers | Fişiere de baze de date | Structured Query Language Data File | MySQL | Oracle Corporation |
| .SQR | Oracle Corporation | Fişiere de date | SQL Program File | MySQL | Oracle Corporation |
| .SR | Sun Microsystems | Fişiere de imagini rastru | Sun Raster Image File | Sun Operating System | Oracle Corporation |
| .SSW | Sony Mobile Communications | Fișiere neobișnuite | Sony Ericsson Firmware File | Unsealer | Oracle Corporation |
| .STD | Oracle Corporation | Fişiere de imagini vectoriale | Apache OpenOffice Drawing Template | StarOffice | Oracle Corporation |
| .STI | Oracle Corporation | Fişiere de date | StarOffice Presentation Template | StarOffice | Oracle Corporation |
| .SUN | Sun Microsystems | Fişiere de imagini rastru | Sun Raster Graphic File | Sun Operating System | Oracle Corporation |
| .SXD | ESRI | Fişiere GIS | ArcScene Document | StarOffice | Oracle Corporation |
| .SXG | Oracle Corporation | Fişiere text | Apache OpenOffice Master Document | StarOffice | Oracle Corporation |
| .SXL | SealedMedia | Fişiere criptate | Sealed Excel Worksheet File | Unsealer | Oracle Corporation |
| .SXLS | Oracle Corporation | Fişiere foi de calcul | Sealed Excel Spreadsheet | Oracle IRM Desktop | Oracle Corporation |
| .SXML | Oracle Corporation | Fişiere criptate | Sealed XML File | Oracle IRM Desktop | Oracle Corporation |
din 1 
