電腦的檔案怎區分

上網睇到既 extensions 多到您都唔信.
只係一少部份:
Archive and compresse

.?Q? — files compressed by the SQ program.
7z — 7-Zip compressed file
ace
ALZ — Alzip format
AT3 - Sony's UMD Data compression (90mb compressed to 900kb)
.bke - BackupEarth.com Data compression
ARC
DDS - Texture file.
ARJ
big Special file compression format used by Electronic Arts for compressing the data for many of EA's games
BKF (.bkf) — Microsoft backup created by NTBACKUP.EXE
bzip2 (.bz2)
cab — Microsoft Cabinet
cpt/sea — Compact Pro (Macintosh)
DAA — Closed-format, Windows-only compressed disk image
deb — Debian Linux install package
DMG — an Apple compressed/encrypted format
EEA — An encrypted CAB, ostensibly for protecting e-mail attachments
EGT (.egt) EGT Universal Document also used to create compressed cabinet files replaces .ecab
ECAB (.ECAB, .ezip) EGT Compressed Folder used in advanced systems to compress entire system folders, replaced by EGT Universal Document
ESS (.ess) EGT SmartSense File, detects files compressed using the EGT compression system.
GHO (.gho, .ghs) — Norton Ghost
gzip (.gz) — Compressed file
jar — ZIP file with manifest for use with Java applications.
LBR — Library file
LQR — LBR Library file compressed by the SQ program.
LHA (.lzh) - Lempel, Ziv, Huffman
lzo
lzx
MacBinary (.bin)
PAK — Enhanced type of .ARC archive
Parchive (.par, .par2)
Doom archive (.pk4) (Opens similarly to a zip archive.)
RAR Rar Archive (.rar), for multiple file archive (rar to .r01-.r99 to s01 and so on)
sit/sitx — StuffIt (Macintosh)
tar
.tar.gz, .tgz (gzipped tar file)
TIB (.tib) — Acronis TrueImage
uha (Ultra High Archive Compression)
VSA — Altiris Virtual Software Archive
Z — Unix compress file
zoo
zip