File preview supported file types

In addition to support for .pdf documents, file preview supports the following formats for videos and images.

.m2v 
.avi 
.divx (preview will be displayed as image)
.m4v 
.flv 
.mp4 
.mkv 
.h261 
.mpg 
.wmv 
.h263 
.mpeg 
.mov 
.h264 
.mxf (preview will be displayed as image)

.aai 
.fig 
.pam 
.rfg 
.art 
.fits 
.clipboard 
.rla 
.arw 
.fpx 
.pbm 
.rle 
.avs 
.gif 
.pcd 
.sct 
.bpg 
.gplt 
.pcds 
.sfw 
.bmp 
.gray 
.pcl 
.sgi 
.bmp2 
.hdr 
.pcx 
.sid 
.bmp3 
.hpgl 
.pdb 
.mrsid 
.cals 
.hrz 
.pdf 
.sparse-color 
.cgm 
.ico 
.pef 
.sun 
.cin 
.info 
.pfa 
.svg 
.cmyk 
.inline 
.pfb 
.tga 
.cmyka 
.jbig 
.pfm 
.tiff 
.cr2 
.jng 
.pgm 
.tim 
.crw 
.jp2 
.picon 
.ttf 
.cur 
.jpt 
.pict 
.uil  
.cut 
.j2c 
.pix 
.uyvy 
.dcm 
.j2k 
.png 
.vicar 
.dcr 
.jpeg 
.png8 
.viff  
.dcx 
.jpg 
.png00 
.wbmp  
.dds 
.jxr 
.png24 
.wdp 
.dib 
.man 
.png32 
.webp 
.djvu 
.mat 
.png48 
.wmf 
.dng 
.miff 
.png64 
.wpg 
.dot 
.mono 
.pnm 
.x 
.dpx 
.mng 
.ppm 
.xbm 
.emf 
.mpc 
.ps 
.xcf 
.epdf 
.mpr 
.ps2 
.xpm 
.epi 
.mrw 
.ps3 
.xwd 
.eps 
.msl 
.psb 
.x3f 
.eps2 
.mtv 
.psd 
.ycbcr 
.eps3 
.mvg 
.ptif 
.ycbra 
.epsf 
.nef 
.pwp 
.yuv 
.epsi 
.orf 
.rad 
.ept 
.otb 
.raf 
.exr 
.p7 
.rgb 
.fax 
.palm 
.rgba