The X
extension name file type Classification
RMVB RealMedia Variable Bit Rate File video file
ROQ Id Software Game Video video file
RP RealPix Clip video file
RSX RED Metadata XML File video file
RTS RealPlayer Streaming Media video file
RTS QuickTime Real-Time Streaming Format video file
RUM Bink Video Subtitle File video file
RV RealVideo File video file
RVID Snapz Pro X Recorded Video File video file
RVL muvee Reveal X Project File video file
SAN Smush Animation File video file
SBK SWiSH Project Backup File video file
SBT SBT Subtitle File video file
SBZ ShowBiz Project File video file
SCC ScreenFlow Screen Recording video file
SCM ScreenCam Screen Recording video file
SCM Super Chain Media File video file
SCN Pinnacle Studio Scene File video file
SCREENFLOW ScreenFlow Document video file
SDV Studio DV Project File video file
SEC Samsung Security Video File video file
SEC GuinXell Video File video file
SEDPRJ Slideshow Studio Elements Project video file
SEQ NorPix StreamPix Sequence video file
SER Astronomical Capture Video File video file
SFD Sofdec Dreamcast Movie video file
SFERA Sfera 360° File video file
SFVIDCAP Sonic Foundry Video Capture File video file
SIV Silicon Imaging Video File video file
SMI SAMI Subtitles File video file
SMI SMIL Presentation video file
SMIL SMIL Presentation File video file
SMK Smacker Compressed Movie File video file
SML SMIL Slideshow Presentation video file
SMV VideoLink Mail Video File video file
SNAGPROJ Snagit Project File video file
SPL FutureSplash Animation video file
SQZ Squeeze Project File video file
SRT SubRip Subtitle File video file
SSF Structured Subtitle Format File video file
SSM Standard Streaming Metafile video file
STL Spruce Technologies Subtitle File video file
STR PlayStation Video Stream video file
STX Pinnacle Studio Project File video file
SVI Samsung Video File video file
SWF Shockwave Flash Movie video file
SWI SWiSH Project File video file
SWT Flash Generator Template video file
TDA3MT DivX Author Template File video file
TDT AVCHD Thumbnail File video file