The X
按字母分类：
extension name file type Classification
RTF Rich Text Format File text file
RTFD Rich Text Format Directory File text file
RTX Rich Text Document text file
RUN Runscanner Scan File text file
RVF RichView Format File text file
RZK File Crypt Password File text file
RZN Red Zion Notes File text file
SAF SafeText File text file
SAFETEXT SafeText File text file
SAM LMHOSTS Sample File text file
SAM Ami Pro Document text file
SAVE Nano Temporary Save File text file
SCC Scenarist Closed Caption File text file
SCM Schema File text file
SCRIV Scrivener Document text file
SCRIVX Scrivener XML Document text file
SCT FoxPro Form Memo text file
SCW Movie Magic Screenwriter Document text file
SDM StarOffice Mail Message text file
SDOC Satra Khmer Document text file
SDW StarOffice Writer Text Document text file
SE Shuttle Document text file
SESSION Mozilla Firefox Session File text file
SGM SGML File text file
SIG Signature File text file
SKCARD Starfish Sidekick Card File text file
SLA Scribus Document text file
SLA.GZ Scribus Compressed Document text file
SMF StarMath Formula File text file
SMS Exported SMS Text Message text file
SSA Sub Station Alpha Subtitle File text file
STORY Storyist Document text file
STRINGS Text Strings File text file
STW StarOffice Document Template text file
STY LaTeX Style text file
SUBLIME-PROJECT Sublime Text Project File text file
SUBLIME-WORKSPACE Sublime Text Workspace File text file
SXG Apache OpenOffice Master Document text file
SXW StarOffice Writer Document text file
TAB Tab Separated Data File text file
TAB Guitar Tablature File text file
TDF Guide Text Definition File text file
TDF Xserve Test Definition File text file
TEMPLATE Apple Pages Template text file
TEX LaTeX Source Document text file
TEXT Plain Text File text file
TEXTCLIPPING Mac OS X Text Clipping File text file
THP TurboTax Text String text file
TLB VAX Text Library text file
TM TeXmacs Document text file