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All File Signatures & Extensions

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Page 30 of 37
.spf

StorageCraft ShadownProtect backup file

Safe

N/A

Primary Hex

53 50 46 49 00
Offset 0
.spl

Windows NT/2000/XP printer spool file

Safe

N/A

Primary Hex

00 00 01 00
Offset 0
.spo

SPSS output file

Safe

N/A

Primary Hex

D0 CF 11 E0 A1 B1 1A E1
Offset 0
.spvchain

MultiBit Bitcoin blockchain file

Safe

N/A

Primary Hex

53 50 56 42
Offset 0
.spx

SPX

Safe

audio/speex

Primary Hex

4F 67 67 53 00 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 2E 53 70 65 65 78 20 20 20
Offset 0
.sqlite

SQLITE

Safe

N/A

Primary Hex

53 51 4C 69 74 65 20 66
Offset 0
.sqlitedb

SQLITEDB

Safe

N/A

Primary Hex

53 51 4C 69 74 65 20 66
Offset 0
.srt

SRT

Safe

application/x-subrip

Primary Hex

31 0A 30 30
Offset 0
.ssp

SSP

Safe

N/A

Primary Hex

53 4D 53 4E 46 32 30 30
Offset 0
.stg

STG

Safe

N/A

Primary Hex

4D 49 4C 20
Offset 0
.stl

ASCIISTL

Safe

model/stl

Primary Hex

73 6F 6C 69 64
Offset 0
.sud

Windows NT Registry and Registry Undo files

Safe

N/A

Primary Hex

52 45 47 45 44 49 54
Offset 0
.suo

Visual Studio Solution User Options subheader

Safe

N/A

Primary Hex

FD FF FF FF 04
Offset 512
.svg

SVG

Safe

image/svg+xml

Primary Hex

3C 73 76 67
Offset 0
.svgz

SVGZ

Safe

image/svg+xml

Primary Hex

3C 73 76 67
Offset 0
.svx

SVX

Safe

N/A

Primary Hex

46 4F 52 4D
Offset 0
.swf

Macromedia Shockwave Flash player file

Safe

application/vnd.adobe.flash.movie

Primary Hex

43 57 53
Offset 0
.swm

SWM

Safe

N/A

Primary Hex

4D 53 57 49 4D 00 00 00
Offset 0
.sxc

OpenOffice spreadsheet

Safe

application/vnd.sun.xml.calc

Primary Hex

50 4B 03 04
Offset 0
.sxd

OpenOffice spreadsheet

Safe

application/vnd.sun.xml.draw

Primary Hex

50 4B 03 04
Offset 0
.sxi

OpenOffice spreadsheet

Safe

application/vnd.sun.xml.impress

Primary Hex

50 4B 03 04
Offset 0
.sxw

OpenOffice spreadsheet

Safe

application/vnd.sun.xml.writer

Primary Hex

50 4B
Offset 0
.sym

SYM

Safe

N/A

Primary Hex

53 6D 62 6C
Offset 0
.sys

Windows/DOS executable file

High

N/A

Primary Hex

4D 5A
Offset 0