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Document files

1,767 file extensions

File extensions used for various document and document template file types

In computer terminology, document file format can be described as a text, or binary data file type, used to store formatted documents (texts, pictures, cliparts, tables, charts, multiple pages, multiple documents etc.). Today, there is a multitude of incompatible document file formats.

The most known document file extensions are used for documents created by Microsoft Office suite, such as DOC and DOCX for Microsoft Word documents, XLS and XLSX for Microsoft Excel spreadsheets and also PPT and PPTX for Microsoft PowerPoint presentations.
Microsoft Office Document format contains collection of records and structures that specify text, tables, fields, pictures, embedded XML markup, and other importatn document content.

The main competitors to the Microsoft Office document formats are OpenDocument Formats (ODF) used by the open source suite called OpenOffice.org and its clones.
The OpenDocument Format is an open XML-based document file format for office applications used for documents containing text (ODT), spreadsheets (ODS), presentations (ODP), and graphical elements (ODG).

Special document formats are file types using page description languages such as PostScript like Portable document format (PDF) developed by Adobe Systems, that you can read with the help of e.g. Adobe Acrobat Reader. PDF is a standard for documents, which the user should be able only to create and read, but not edit. PDF format has become an ISO standard in 2001 and today its widely used.

The most used open international standard are the HTML (HyperText Markup Language) files, which can also be used as document file format.

The most known applications, that are able to open many of the document file formats are office suites such as Microsoft Office, OpenOffice.org, StarOffice (commercial version of OpenOffice.org), Corel WordPerfect and Apple iWork under MAC OS X.

All file extensions in category: Document file

1,767 file extensions - page 2 of 4

fp
.fp
FinePrint saved or output data
fp3
.fp3
FastReport report
fpage
.fpage
Microsoft XPS document page
fpc
.fpc
QuoteWerks report template
fpj
.fpj
FARSITE project
fr3
.fr3
FastReport form file
frdoc
.frdoc
ABBYY Finereader document
freeway
.freeway
Freeway Pro project
frg
.frg
dBASE IV uncompiled report
frm
.frm
Form file
fsc
.fsc
Design Pro Tools form file
fsd
.fsd
COCO AmsterCHEM flowsheet document
fsform
.fsform
Form data
fsif
.fsif
MyLabel Designer Deluxe label document
fss
.fss
PaperPort slide show
ftil
.ftil
e-Hastakshar contract note
ftl
.ftl
FreeMarker template
ftlx
.ftlx
Apache Freemaker XML template
ftmt
.ftmt
Family Tree Maker chart template
ftpl
.ftpl
Simfatic Forms template
ftr
.ftr
Ccourt record
ftr
.ftr
Future document
fts
.fts
ArcView UNIX help supporting data
ftw
.ftw
Family Tree Maker project
fwk
.fwk
Fireworkz document
fwrt
.fwrt
FullWrite file
fwtb
.fwtb
Freeway Pro template bundle
fwtemplate
.fwtemplate
Freeway Pro template
fwtemplateb
.fwtemplateb
Freeway Pro template bundle
fx
.fx
Corel WordPerfect Office template
fx2
.fx2
Corel WordPerfect Office template
fxd
.fxd
WinFax sent document
ga3
.ga3
Graphical Analysis document
gca3
.gca3
GURPS Character Assistant file
gca4
.gca4
GURPS Character Assistant data
gca4base
.gca4base
GURPS Character Assistant data
gcf
.gcf
Greeting Card Creator project file
gcx
.gcx
Apple Grapher graph file
gda
.gda
Unix manual page guide
gdc
.gdc
Iconics GraphWorx32 document
gdf
.gdf
GRAFIK Eye Designer project
gen
.gen
Generations Embroidery Software design
gev
.gev
GelEval document
gevl
.gevl
GelEval document file
gexf
.gexf
Graph Exchange XML graph
gfc
.gfc
Patton&Patton Flow Charting 4 flowchart drawing
gft
.gft
Flow Charting diagram template
ggb
.ggb
GeoGebra document
ghe
.ghe
State Examinations Commission data
gif2
.gif2
NetObjects Fusion styles lines data
gil
.gil
GILS document
gjam
.gjam
Google Jamboard document
gjots2
.gjots2
gjots2 format
glo
.glo
Adobe RoboHelp glossary file
gmp
.gmp
GEM Publisher document
gmp
.gmp
GUEmap document
gmx
.gmx
GroupMail message file
gno
.gno
GenoPro genealogy
gnote
.gnote
Google Keep note
gofin
.gofin
Druki Gofin document
goodnotes
.goodnotes
Goodnotes document
gp4
.gp4
Guitar Pro 4 project
gpf
.gpf
Grant Agreement Preparation Form file
gph
.gph
Lotus 1-2-3 graph
gpn
.gpn
GlidePlan map document
gra
.gra
Microsoft Graph chart
grade
.grade
GradeStat document
grf
.grf
Insight II standard graph definition file
grf
.grf
DPlot graph data
grk
.grk
Gradekeeper document
grs
.grs
Esko Packedge GRS document
grv
.grv
Microsoft SharePoint WorkSpace Groove data
gs
.gs
GemStone document file
gsa
.gsa
SharePoint WorkSpace Groove workspace archive or template
gsc
.gsc
IMail Server web messaging data
gsh
.gsh
GenStat spreadsheet
gsp
.gsp
IMail Server returned mail
gsp
.gsp
Giza specifier project
gtd
.gtd
GT Designer 2 project
gui
.gui
Dr.Explain project
gwb
.gwb
GenStat book
gwb
.gwb
InterWrite Reader data
h2o
.h2o
H2OMAP Water master project
hbl
.hbl
Braille Sense document
hcr
.hcr
PrintMaster half-fold card data
hcx
.hcx
Harvard ChartXL chart data
hda
.hda
HotDocs document template
hdc
.hdc
HD Tach benchmark results
hdt
.hdt
HTML document tree
hed
.hed
HighEdit document
help
.help
Unix help document
hfd
.hfd
HotDocs form document
hft
.hft
HotDocs form template
hhp
.hhp
Procomm Plus help information for remote users
hhp
.hhp
Microsoft HTML Help project
hht
.hht
Microsoft Help and Support Center HHT data
his
.his
Insight II dynamics trajectory history
his
.his
SOBEK simulation history data
hlf
.hlf
FAR Manager help data
hlp
.hlp
Help file
hm2
.hm2
Help & Manual help file project
hm3
.hm3
Help & Manual help file project
hmk
.hmk
Hallmark Card Studio card data
hmp
.hmp
Help Magician help project
hmx
.hmx
Help & Manual help file project
hmxp
.hmxp
Help & Manual help uncompressed XML project
hmxz
.hmxz
Help & Manual help file compressed XML project
hnc
.hnc
NoteCenter note
hnd
.hnd
HelpNDoc project
hot
.hot
eFax messenger fax document
hpd
.hpd
HP document
hpd
.hpd
HotDocs PDF document
hpj
.hpj
Microsoft Win Help project
hpo
.hpo
HippoDraw canvas document
hpt
.hpt
HotDocs PDF template
hpw
.hpw
Hewlett-Packard Word document file
hsm
.hsm
HelpSmith project
hst
.hst
Yahooo Messenger history
ht3
.ht3
HTML document
htmao
.htmao
ActionOutline HTML export
htz5
.htz5
HyperMaker document
hw3
.hw3
World Literary Heritage document file
hwp
.hwp
Hanword (Hangul) document
hwpml
.hwpml
Hangul Word Processor Markup Language document
hwt
.hwt
Hancom Hanword template
hxc
.hxc
Microsoft Visual Studio Collection Definition file
hxs
.hxs
Microsoft Help compiled help document
hxv
.hxv
Microsoft Help virtual topic definition
hyp
.hyp
Atari ST guide data
hype
.hype
Hype web project
iaf
.iaf
IAFA document
ibatemplate
.ibatemplate
iBooks Author template
ibcd
.ibcd
InstantBingoCard document
ic
.ic
ASwin project
icalevent
.icalevent
Apple iCal document
icaltodo
.icaltodo
Apple iCal document file
icma
.icma
Adobe InCopy assignment data
icml
.icml
Adobe InCopy document
icmt
.icmt
Adobe InCopy template
icst
.icst
Adobe InCopy document preset
idap
.idap
Adobe InDesign assignment package
idc
.idc
Internet Database Connector document
idd
.idd
Adobe InDesign for Mac document
idml
.idml
InDesign Markup Language document
if
.if
IFwin project
ifo
.ifo
Info file
igx
.igx
iGrafX FlowCharter flow chart or process model
iks
.iks
Microsoft InkSeine document file
ila
.ila
LohnViewer document
ildoc
.ildoc
BroadVision QuickSilver document
imf
.imf
IncrediMail letter/eCard file
imp
.imp
TEX-DESIGN clothing design data
imp
.imp
Impression document
imr
.imr
IBM Cognos Impromptu report
ims
.ims
SiteSpinner project
imscc
.imscc
Canvas exported course
imsp
.imsp
Survey Designer survey file
imtx
.imtx
iMindMap template
imv
.imv
ImageMixer VCD project
imx
.imx
iMindMap map
incp
.incp
Adobe InCopy CS3 package
inct
.inct
Adobe InCopy template file
ind
.ind
Adobe InDesign graphics document
indb
.indb
Adobe InDesign publication
indd
.indd
Adobe InDesign document
indn
.indn
Adobe Indesign for Mac file
indt
.indt
Adobe InDesign template
inf
.inf
Inspiration mind mapping data
infopathxml
.infopathxml
Microsoft InfoPath form
ini
.ini
Simple Exchange Rate Information
ink
.ink
Pocket PC handwritten note
ink
.ink
Mimio ink data
inld
.inld
ImageLink document
inp
.inp
InPage Urdu document
inrs
.inrs
Adobe InDesign for Mac data
insx
.insx
InScribe XML document file
inx
.inx
Adobe InDesign Interchange File Format
iof
.iof
Microsoft Findit document
ipf
.ipf
IBM OS/2 help data
ipr
.ipr
SMART Ideas document
ipr
.ipr
InstallShield project file
iqp
.iqp
ITEM QRAS project
isale
.isale
iSale auction data
isaletemplate
.isaletemplate
iSale template
isdoc
.isdoc
Information System Document
isdocx
.isdocx
Information System Document archive
ish1
.ish1
Animation-ish Wiggledoodle-ish document
ish2
.ish2
Animation-ishFlipBook-ish document
ish3
.ish3
Animation-ish Advanced-ish document
ispx
.ispx
iStudio Publisher document
it
.it
ITwin project
itmz
.itmz
iThoughtsX mind-map document
ivt
.ivt
MSDN InfoViewer information title
iwa
.iwa
Apple iWork document archive
iwp
.iwp
Website X5 project
iwprj
.iwprj
Website X5 project
iwtpl
.iwtpl
WebSite X5 template
iwzip
.iwzip
Website X5 project
ix
.ix
Corel WordPerfect Office template
ixv
.ixv
IXOS application document
jdf
.jdf
Alpha Journal Pro document
jdm
.jdm
Jade diagram file
jfm
.jfm
JetForm Filler form
jhd
.jhd
Jagannatha Hora document
jnt
.jnt
Microsoft Windows Journal note file
job
.job
Kodak Preps project
joe
.joe
.joe Editor document
jpx
.jpx
JBuilder project
jrf
.jrf
winIDEA workspace file
jrp
.jrp
Electric Quilt document
jrprint
.jrprint
JasperReports print data
jsd
.jsd
eFax Jet Suite document
jtd
.jtd
Ichitaro document
jtdc
.jtdc
Ichitaro compressed document
jtp
.jtp
Microsoft Windows Journal template
jtt
.jtt
Ichitaro document template
jtx
.jtx
XPS document
jw
.jw
WordPad / JustWrite document
jwl
.jwl
Easy CD Creator CD label document
kbd
.kbd
General Knowledge Base document
kdc
.kdc
Kwalitan document
kdd
.kdd
Adobe Authorware RTF Objects Editor knowledge display data
kdf
.kdf
Kinko's File Prep Tool data
kdh
.kdh
Chinese Academic Journals Online full-text database
kes
.kes
Kurzweil 3000 text-to-speech document
key
.key
iWork Keynote '09 presentation
key-tef
.key-tef
Apple Keynote iCloud presentation
keynote
.keynote
iWork Keynote '06 presentation
kfm
.kfm
KEY Form Designer form design
kht
.kht
Nonosoft KHOT data
kid
.kid
Kidspiration document
kjv
.kjv
TheWord data
klip
.klip
KlipFolio data
km
.km
Naotu / Baidu mind map
kmp
.kmp
Correlate K-Map KnowledgeMap data
knb
.knb
KeepNote document
knt
.knt
Tranglos KeyNote note
kos
.kos
MicroType Pro document file
kpr
.kpr
KOffice KPresenter presentation
kpt
.kpt
KPresenter template
kth
.kth
Apple iWork Keynote theme file
kwd
.kwd
KWord document (old)
kwp
.kwp
Kamban document
la
.la
LAwin project
laba
.laba
Labels & Addresses project
latex
.latex
Latex text document
lax
.lax
AnetHelpTool JavaHelp viewer data file
layoutdesigner
.layoutdesigner
QuickBooks layout designer template
lb
.lb
LBwin project
lbl
.lbl
PrintMaster label document
lbl
.lbl
NiceLabel template
lbl
.lbl
Now Contact label template
lbl
.lbl
Creatacard label project
lch
.lch
IBM Works for OS/2 chart
ldf
.ldf
IBM Works for OS/2 data filer form
let
.let
Creatacard letterhead project file
lgf
.lgf
Microsoft Windows application log
lgf
.lgf
ProWORX Nxt log book note
lgpl
.lgpl
GNU Licency data
lhd
.lhd
Label Home document
lic
.lic
License file
ll
.ll
List & Label preview
ll3
.ll3
Laplink III document
lma
.lma
Learning Mobile Author (LMA) project
lnt
.lnt
Laego Note Taker data
loc
.loc
Suppose locations file
lof
.lof
LaTex auxiliary data
logonxp
.logonxp
LogonStudio document
lp2
.lp2
iLEAP document
lpc
.lpc
IBM OS/390 document management system data
lpd
.lpd
Lecturnity multimedia presentation document
lpdf
.lpdf
Mac OS X localized PDF (Portable Document Format) file
lrp
.lrp
IBM Works for OS/2 report
lsd
.lsd
LECTURNITY presentation file source format
lsl
.lsl
LightScribe Template Labeler label file
lsp
.lsp
Liquid Player playlist
lsr
.lsr
LANsurveyor report
lst
.lst
Kaspersky Lab blacklist
lst
.lst
BPM Studio playlist file
ltm
.ltm
IBM Lotus Forms form
ltx
.ltx
Mathematical text document
lucy
.lucy
HTC Scribble note
lvm
.lvm
LabVIEW measurement data
lwc
.lwc
Legacy Charting chart
lwp
.lwp
IBM Works for OS/2 document
lwp
.lwp
Lotus Word Pro document
lyx
.lyx
LyX document
m13
.m13
Microsoft Media Viewer data
m14
.m14
Microsoft Media Viewer file
maca
.maca
MacWrite document
mag
.mag
Fortis and file magic document
manu
.manu
LOTUS Manuscript document
marc
.marc
MAchine-Readable Cataloging (MARC) document file
markdn
.markdn
Markdown markup language document
mars
.mars
Adobe Mars data
mass
.mass
MASS-11 text document file
max
.max
Microsoft Creative Writer document
mbbk
.mbbk
ManaBook book kit file
mbd
.mbd
Medbasin project
mcbn
.mcbn
Microsoft Excel 4 for Mac Chart file
mcd
.mcd
MathCAD document
mcdx
.mcdx
Mathcad Prime document
mcmac
.mcmac
MacGourmet MasterCook document file
mcr
.mcr
Health Financial Systems Medicare Auditor cost report file
mcsp
.mcsp
My Craft Studio project file
mcw
.mcw
Microsoft Word for Mac document
mdbhtml
.mdbhtml
Microsoft Office Access HTML document
mdd
.mdd
Database Designer for MySQL database diagram
mdf
.mdf
Adobe Mobile Document Format file
mdh
.mdh
Madhyam document
mdhtml
.mdhtml
Microsoft Access HTML file
mdj
.mdj
StarUML model
mdk
.mdk
Astra Schedule schedule file
mdk
.mdk
Madoko document
me
.me
TROFF document
me
.me
MEwin project
me3
.me3
Arcsoft MultiMedia Email project
med
.med
MEDLINE document file
mell
.mell
RedleX Mellel document
mellel
.mellel
RedleX Mellel document
met
.met
OmniPage Pro document
mfa
.mfa
Microsoft Site Server report definition file
mfg
.mfg
MediaForge Runtime Player distribution project
mfo
.mfo
Mediaface Online CD label software project
mfp
.mfp
MediaFACE CD data
mfp
.mfp
Macromedia FlashPaper document
mft
.mft
Mediaface project template file
mgourmet
.mgourmet
Mariner MacGourmet document file
mgourmet3
.mgourmet3
Mariner MacGourmet document
mhe
.mhe
MHwinEHE project
mht
.mht
Mime HTML (MHTML) document
mif
.mif
mAirList inline data
mind
.mind
Mindmeister mindmap
mindnode
.mindnode
MindNode document
mio
.mio
MyInfo topic data
miradi
.miradi
Miradi project
mjbooktemplate
.mjbooktemplate
MacJournal book template file
mjdoc
.mjdoc
MacJournal document file
mla
.mla
WorshipCenter Pro document
mlj
.mlj
Canon MultiPASS Suite fax document
mlp
.mlp
mAirList playlist
mls
.mls
WorshipCenter Pro document
mm
.mm
MultiMate Advantage II text document
mm
.mm
FreeMind mind map data
mmap
.mmap
MindManager mind map
mmas
.mmas
MindManager theme
mmat
.mmat
MindManager template
mmd
.mmd
DocsAlive multimedia document
mmf
.mmf
Microsoft Mail message
mml
.mml
MathML math embedded HTML document
mmmp
.mmmp
MindManager Pro 7 map part
mmo
.mmo
RapidFile memo document
mmp
.mmp
MindManager map
mmp
.mmp
Gammadyne Mailer project file
mmpr
.mmpr
CodeWarrior project
mmsw
.mmsw
Movie Magic Screenwriter document
mnb
.mnb
MyInfo notebook
mnc
.mnc
My Notes Center notebook
mnk
.mnk
My Notes Keeper notebook data
mnl
.mnl
Help & Manual print manual template
moml
.moml
Modeling Markup Language document
montage
.montage
Montage screenplay document
mot
.mot
MarcEdit template
mp
.mp
MPwin project
mpc
.mpc
Microsoft Project calendar file
mpj
.mpj
Adobe RoboHelp HTML project
mpls
.mpls
Blu-ray movie playlist information data
mpp
.mpp
Microsoft Project plan file
mpp_
.mpp_
Microsoft Project for Mac plan file
mppx
.mppx
Microsoft Project project
mppz
.mppz
MagicPlot project
mpr
.mpr
AutoCAD mass properties report
mpr
.mpr
Direct Mail project
mpv
.mpv
Microsoft Project view file
mpw
.mpw
MosASCII project workspace
mpwd
.mpwd
MacWrite Pro data
mpx
.mpx
Microsoft Project export
ms
.ms
troff formatted manual page
msd
.msd
Maxsurf design
msdvd
.msdvd
Microsoft Windows DVD Maker project
mse
.mse
MSwinEHE project
msg
.msg
FoxPro FoxDoc message
mshc
.mshc
Microsoft Help container
mso
.mso
Microsoft Organization Chart chart data
msor
.msor
FiberTrace document
mst
.mst
Corel Presentations master template
msw
.msw
Microsoft Word 5 document
mswd
.mswd
Microsoft Word for Mac document
mtp
.mtp
Power Translator document file
mtx
.mtx
Max Magic Microtuner tuning interchange document
mug
.mug
Hanes T-ShirtMaker document
muse
.muse
Adobe Muse project
mvb
.mvb
Multimedia Viewer book
mvd
.mvd
MindView document
mvt
.mvt
Ultimate Wish Lists template file
mvtx
.mvtx
MindView template
mvw
.mvw
Saber LAN log
mw
.mw
Maple worksheet
mwd
.mwd
Mariner Write document
mwii
.mwii
MacWrite II text document
mwpd
.mwpd
MacWrite Pro document file
mwpp
.mwpp
MacWrite Pro document file
mwpr
.mwpr
MacWrite Pro file
mwt
.mwt
MetaStock stock analysis template
mx2
.mx2
MasterCook recipe
mx3
.mx3
Mixcraft project
mxfd
.mxfd
ABBYY form
n3
.n3
Notation3 document
nb
.nb
Mathematica notebook data
nb
.nb
Corel Word Perfect notebook
nb
.nb
Nota Bene text document
nbib
.nbib
PubMED citation data
nbk
.nbk
Nick-O-Matic Design Factory project file
nbp
.nbp
Mathematica notebook data
ncb
.ncb
Nick-O-Matic Design Factory project file
ncd
.ncd
NoteCase Pro document (old)
ncdb
.ncdb
NoteCase Pro document (new)
ncde
.ncde
NoteCase Pro encrypted document (new)
nce
.nce
NoteCase Pro encrypted document (old)
ncf
.ncf
Nick-O-Matic Design Factory project
nclk
.nclk
HTML formatted text
nct
.nct
Nero CoverDesigner template
ncw
.ncw
Nero CoverDesigner picture template
ncz
.ncz
NoteCase Pro compressed document (old)
ndp
.ndp
Nick-O-Matic Design Factory project file
ne1
.ne1
OM2 OMALI NENA Version 1 document
ne3
.ne3
OM2 OMALI NENA document
nen
.nen
Nick-O-Matic Design Factory project
nfo
.nfo
Microsoft MSInfo document
ng
.ng
Norton Guide online documentation database
ngloss
.ngloss
Nisus Writer Pro glossary data
nh
.nh
Chinese Academic Journals Online full-text database
njx
.njx
NJStar document
nkp
.nkp
Tolon Notekeeper format
nm5
.nm5
NovaMind mind map
not
.not
Notation or note
note
.note
Tomboy note
note
.note
Corel WordPerfect for Mac help file
note
.note
Notability note
notebook
.notebook
SMART Notebook digital lesson
np
.np
Portfolio NetPublish web template
npd
.npd
Netrosoft Presentation document
npdf
.npdf
Normal PDF document
npf
.npf
Nick-O-Matic Design Factory project
npi
.npi
Nick-O-Matic Design Factory project
npl
.npl
Allplan Engineering plot layout
npp
.npp
Art Explosion Publisher Pro document
nst
.nst
Lotus Notes template file
nta
.nta
Nota Aspel document
nte
.nte
Asus Eee note
ntf
.ntf
MediaFACE CD label
ntp
.ntp
MediaFACE CD label
nts
.nts
Psion Organiser notepad document
nwcp
.nwcp
Nisus Writer Pro clipboard document file
nx__
.nx__
WriteNow 4 document
nx^d
.nx^d
WriteNow 2 document file
nxd
.nxd
ndxCards index card project
nzn
.nzn
NoteZilla sticky note
oa2
.oa2
Fujitsu OASYS 2 document
oa3
.oa3
OASYS 3 document
oad
.oad
Suite Notaro document
oam
.oam
Adobe Edge overlay
oas
.oas
Fujitsu OAS document
obd
.obd
Oracle Forms online help data
obd
.obd
Microsoft Office Binder document
obr
.obr
Objective Reference Document Link data
obv
.obv
Caché ObjectScript form
obx
.obx
OpenBook document
ocdc
.ocdc
Mathematica document file
ocs
.ocs
eDoc DigiSign digitally signed document
odc
.odc
OpenDocument chart
odccubefile
.odccubefile
OpenDocument 1 chart
odf
.odf
Open Document Interchange Format (ODIF)
odif
.odif
Open Document Interchange Format file
odm
.odm
OpenOffice.org OpenDocument global text document
odo
.odo
iCUBE Online Operating System Write document file
odp
.odp
OpenOffice.org OpenDocument presentation
ods
.ods
OpenDocument spreadsheet
odt
.odt
ODF text document
odt#
.odt#
OpenOffice.org locked document
ofm
.ofm
OfficeForms blank form
ofm
.ofm
OmniForm form
ofn
.ofn
Microsoft Office File New (Other Office Documents)
ogc
.ogc
Organica document file format
ole
.ole
Microsoft Object Linking and Embedding data
ole2
.ole2
Microsoft Office binary document container format
olv
.olv
OyezForms legal document
oml
.oml
TracePro model file
omp
.omp
Office Manager Pro document archive
omp
.omp
OpenMind project
one
.one
docPointer visual readme document
oos
.oos
Apache OpenOffice (OpenOffice.org) spreadsheet
op2
.op2
NEi Nastran binary results neutral data
opd
.opd
OmniPage document
opd
.opd
Durango Interferometry Software document
opj
.opj
Origin project
opj
.opj
OmniPage schedule
oplx
.oplx
Omniplan project document
opn
.opn
Court opinion data
opsx
.opsx
Open Pedigree Standard Exchange Document