| .rbs |
Windows Installer Rollback Script |
| .rdb |
Retrospect Backup Set |
| .rbc |
Rembo-C Script |
| .rbf |
LEGO MINDSTORMS EV3 Robot Brick File |
| .rbk |
Windows 95 Registry Backup File |
| .rgmb |
RootsMagic Backup File |
| .rmbak |
Registry Mechanic Backup File |
| .sav |
Nintendo DS Save File |
| .sps |
SPSS Program File |
| .sis |
Steam Game Backup Information File |
| .sbu |
Samsung Backup File |
| .sme |
Samsung Mobile Backup File |
| .sdc |
Stardock Central Download Archive |
| .skb |
SketchUp Backup And Cache File |
| .sqb |
SQL Backup SQL Server Backup File |
| .spg |
TCP Optimizer Backup File |
| .sna |
Drive Snapshot Primary Backup File |
| .sn1 |
Drive Snapshot First Differential Backup |
| .sn2 |
Drive Snapshot Second Differential Backup |
| .spf |
ShadowProtect Full Backup File |
| .sim |
Steam Game Backup Information File |
| .sv2i |
Symantec System Index File |
| .stg |
ActiveSync Backup File |
| .srr |
ReScene Metadata File |