Hola les envio un listado de extensiones de archivos, extraido de:
The Information Exchange
http://info-x.co.uk/default.asp?page=http://www.info-x.co.uk/info/fileext.stm
ahi va
  .000  (000-999) Sequentially Numbered Backup Files
  .075  Ventura Publisher 75dpi Screen Characters
  .085  Ventura Publisher 85dpi Screen Characters
  .091  Ventura Publisher 91dpi Screen Characters
  .096  Ventura Publisher 96dpi Screen Characters
  .0B   PageMaker Printer Font LineDraw Characters
 
  .12M  Lotus Smartmaster File
  .123  Lotus File
  .15U  PageMaker Printer Font
  .1PE  TurboTax Form File
  .1ST  Information (e.g., README.1ST)
 
  .286  Windows Standard Mode Driver
  .2GR  Windows EGA/VGA Screen Grabber
 
  .301  Fax Data
  .303  Seq-303 Settings
  .320  Chromelion Demo Data File
  .323  H.323 Internet Telephony
  .340  Chromelion Demo Data File
  .386  Windows Enhanced Mode Driver or Swap File
  .3DM  3D Modeler File
  .3DP  Serif 3D Plus
  .3DS  3D Studio Graphic
  .3FX  Corel Chart 3D Effect
  .3GR  Windows SVGA/XVGA Screen Grabber
  .3IN  MSN Setup Information
 
  .4GE  Informix 4GL Compiled Code
  .4GL  Informix 4GL Source
  .4SW  4DOS Swap File
  .4TH  FORTH Program
 
  .669  669 Tracker Module or Unis Composer Music File
 
  .8    A86 Assembler Program File
  .8BA  Adobe PhotoDeluxe Plugin (also ends in E, F, I, X, & Y)
  .8M   PageMaker Math 8 Printer Font
  .8U   PageMaker Roman 8 Printer Font
 
  .906  Calcomp Plotter File
 
  .?q?  Squeeze
 
  .A    UNIX Library or ADA Program
  .A01  ARJ Multi-volume Compressed Archive (can be 01 to 99)
  .A11  Graphic
  .A3K  Yamaha A3000 Sampler File
  .A3M  Unpackaged Authorware MacIntosh File
  .A3W  Unpackaged Authorware Windows File
  .A4M  Unpackaged Authorware MacIntosh File
  .A4P  Authorware File without runtime)
  .A4W  Unpackaged Authorware Windows File
  .A5W  Unpackaged Authorware Windows File
  .A86  A86 Assembler Program File
  .A_T  A-Train
continua------>     
  
 
Este tema le ha gustado a 2 personas (incluyéndote)