Text Files

The text file format is used to store data either in plain text or something more structured depending on the program that has created it or is going to use it.

text format files

File Extension Format type
1ST Readme File
602 Text602 Document
_DOC Renamed Microsoft Word Document
_DOCX Renamed Microsoft Word Document
ABW AbiWord Document
ACT FoxPro Documenting Wizard Action Diagram
ADOC AsciiDoc Document
ANS ANSI Text File
APPODEAL Appodeal Text File
APT Almost Plain Text File
ASC Autodesk ASCII Export File
ASC ASCII Text File plain text human-readable plain text, usually no more specific
AsciiDoc  an open human-readable markup document format semantically equivalent to DocBook
ASE Autodesk ASCII Scene Export File
ATY Association Type Placeholder
AWP Ability Write Template
AWT AbiWord Template
AWW Ability Write Document
B Brainf*ck Source Code File
BAD Exchange Badmail File
BBS Bulletin Board System Text
BDP Exchange Diagnostic Message
BDR Exchange Non-Delivery Report Body File
BEAN Bean Rich Text Document
BF Brainf*ck Source Code File
BIB Bibliography Document
BIB BibTeX Bibliography Database
BIBTEX BibTeX Bibliography Database
BML Braille 2000 Braille File
BNA Barna Word Processor Document
BOC EasyWord Big Document
BRX Beam Report Document
BTD Business-in-a-Box Document
BTXT BTXTPad Document
BWD BanglaWord Document
BXT Balabolka Text Document
BZABW Compressed AbiWord Document
CALCA Calca Document
CAST Asciicast Terminal Recording
CEC Studio C Alpha Upgrade File
CHARSET Character Set
CHORD Song Chords File
CNF configuration file substantially software-specific
CONF configuration file substantially software-specific
CFG configuration file substantially software-specific
CNM NoteMap Outline File
COD Atlantis Word Processor Encrypted Document
COPF Copy Operation File
CRWL Windows Crawl File
CSS cascading style sheets
CSV comma-separated values
CWS Claris Works Template
CYI Clustify Input File
DCA DisplayWrite Document
DEL Delimited ASCII File
DESCRIPTION youtube-dl Video Description
DFTI FlexiWrite Document
DGS Dagesh Pro Document
DIFF ext file differences created by the program diff
DIZ Description in Zip File
DM BYOND Dream Maker Code
DNE Netica Text File
DOC Microsoft Word Document
DOCM Microsoft Word Macro-enabled Document
DOCX Microsoft Word Document
DOCXML Microsoft Word XML Document
DOCZ ThinkFree Online Note Document
DOTM Microsoft Word Macro-Enabled Document Template
DOTX Microsoft Word Template
DOX MultiMate Document
DROPBOX Dropbox Shared Folder Tracker
DSC Text Description File
DVI Device Independent Format File
DWD DavkaWriter File
DX DEC WPS Plus File
DXB Duxbury Braille File
DXP Duxbury Print File
EBP Express Burn Project
EIO Yozo Office File
EIT Yozo Office Template File
EMBED Embed Notes Note
EMF Jasspa MicroEmacs Macro File
EML E-Mail Message
EMLX Apple Mail Message
EPP EditPad Pro Project
ERR Error Log File
ERR FoxPro Compilation Error
ETF ENIGMA Transportable File
ETX Structure Enhanced Text (Setext) File
EUC Extended Unix Code File
FAQ Frequently Asked Questions Document
FBL CADfix Command Level Log File
FCF Final Draft Converter File
FDF Acrobat Forms Data Format
FDR Final Draft Document
FDS Final Draft Secure Copy
FDT Final Draft 5-7 Template
FDX Final Draft Document
FDXT Final Draft 8 Template
FFT Final Form Text File
FGS Fig Figure Settings File
FLR Flare Decompiled ActionScript File
FODT OpenDocument Flat XML Document
FOUNTAIN Fountain Script File
FPT FoxPro Table Memo
FRT FoxPro Report Memo
FWDN fWriter Document
GDOC Google Docs Shortcut
GFORM Google Forms Shortcut
GJAM Google Jamboard Shortcut
GMAP Google My Maps Shortcut
GMD GroupMail Message
GPD Generic Printer Description File
GPN GlidePlan Map Document
GSCRIPT Google Apps Script Shortcut
GSD General Station Description File
GSITE Google Sites Shortcut
GSLIDES Google Slides Shortcut
GTABLE Google Fusion Table Shortcut
GTHR Gather Log File
GV Graphviz DOT File
HBK Mathcad Handbook File
HHT Help and Support Center HHT File
HIGHLAND Highland Document
HS Java HelpSet File
HTML hyper text markup language
HWP Hanword Document
HWP Hangul Text Document
HZ Chinese (Hanzi) Text
IDX Outlook Express Mailbox Index File
IIL CleanSweep Installation Log
INI a configuration text file whose format is substantially similar between applications
IPF OS/2 Help File
IPSPOT iPhoto Spot File
IPYNB Jupyter Notebook
JARVIS Jarvis Subscriber File
JIS Japanese Industry Standard Text
JNP Java Web Start File
JOE JOE Document
JP1 Japanese (Romaji) Text File
JRTF JAmes OS Rich Text File
JSON JavaScript Object Notation is an openly used data format now used by many languages, not just JavaScript
JTD JustSystems Ichitaro Document
KES Kurzweil 3000 Document
KLG Log File
KNT KeyNote Note File
KON Yahoo! Widget XML File
KWD KWord Document
LATEX LaTeX Document
LBT FoxPro Label Memo
LICENSE Software License File
LIS SQR Output File
LNK42 Windows 93 Desktop Shortcut
LNT Laego Note Taker File
LOG Log File  logfiles usually text, but sometimes binary
LP2 iLEAP Word Processing Document
LST Data List
LST FoxPro Documenting Wizard List
LTR Letter File
LTX LaTeX Document
LTXD Light Text Editor Document
LUE Norton LiveUpdate Log File
LUF Lipikar Uniform Format File
LWP Lotus Word Pro Document
LXFML LEGO Digital Designer XML File
LYT TurboTax Install Log File
LYX LyX Document
MAN Unix Manual
MBOX Email Mailbox
MCW MacWrite II Document
MD MuseData Musical Score, Markdown an open lightweight markup language to create simple but rich text, often used to format README files
MD5TXT Message Digest 5 Hash File
ME Readme Text File
MELL Mellel Word Processing File
MELLEL Mellel Document
MELTEM Mellel Template
MIN Mint Source File
MNT FoxPro Menu Memo
MPD MPEG-DASH Media Presentation Description
MSG Outlook Message Item File
MSS CartoCSS Map Stylesheet
MW MacWrite Text Document
MWD Mariner Write Document
MWP Lotus Word Pro SmartMaster File
NB Nota Bene File
NDOC Naver Word
NFO Warez Information File
NGLOSS Nisus Writer Glossary
NJX NJStar Document
NOTE Notability Note File
NOTES Memento Notes File
NOW Readme File
NWCTXT NoteWorthy Composer Text File
NWM Nisus Macro
NWP Now Contact WP Document
OCR FAXGrapper Fax Text File
ODIF Open Document Interchange Format
ODM OpenDocument Master Document
ODO Online Operating System Write Document
ODP Organ Definition Project
ODT OpenDocument Text Document
OFL Ots File List
OMFL Open Multiple Files File List
OPEICO Opeico Text File
OPENBSD OpenBSD Readme File
ORG Emacs Org Text Document
ORT Rich Text Editor Document
OTT OpenDocument Document Template
P7S Digitally Signed Email Message
PAGES Apple Pages Document
PAGES-TEF Pages iCloud Document
PDPCMD Pdplayer Command File
PFX First Choice Word Processing Document
PIMX Adobe Package Installation Management File
PLAIN Plain Text File
PMO Pegasus Saved Message File
PRT Printer Output File
PRT Crypt Edit Protected Text Format File
PSW Pocket Word Document
PTNX EasyBeadPatterns Pattern
PU PlantUML File
PVJ ProofVision Job Ticket
PVM Photo Video Manifest File
PWD Pocket Word Document
PWDP Password Pad Document
PWDPL Password Pad Lite Document
PWI Pocket Word Document
PWR PowerWrite Document
QBL QuickBooks License File
QDL QDL Program
QPF QuickPad Encrypted Document
QUID QuidProQuo Document
RAD Radar ViewPoint Radar Data
README Readme File
RFT Revisable Form Text Document
RIS Research Information Systems Citation File
RPT Generic Report
RST reStructuredText File
RTD RagTime Document
RTF Rich Text Format File
RTFD Rich Text Format Directory File
RTX Rich Text Document
RUN Runscanner Scan File
RVF RichView Format File
RZK File Crypt Password File
RZN Red Zion Notes File
SAF SafeText File
SAFETEXT SafeText File
SAM Ami Pro Document
SAVE Nano Temporary Save File
SCC Scenarist Closed Caption File
SCM Schema File
SCRIV Scrivener Document
SCRIVX Scrivener XML Document
SCT FoxPro Form Memo
SCW Movie Magic Screenwriter Document
SDM StarOffice Mail Message
SDOC Satra Khmer Document
SDW StarOffice Writer Text Document
SE Shuttle Document
SESSION Mozilla Firefox Session File
SHIM Scoop Shim File
SKCARD Starfish Sidekick Card File
SLA Scribus Document
SLAGZ Scribus Compressed Document
SMF StarMath Formula File
SMS Exported SMS Text Message
STORY Storyist Document
STRINGS Text Strings File
STW StarOffice Document Template
STY LaTeX Style
SUBLIME-PROJECT Sublime Text Project File
SUBLIME-WORKSPACE Sublime Text Workspace File
SW3 Scriptware Screenplay
SXG Apache OpenOffice Master Document
SXW StarOffice Writer Document
TAB Tab Separated Data File
TDF Guide Text Definition File
TDF Xserve Test Definition File
TEMPLATE Apple Pages Template
TEX LaTeX Source Document
TEXT Plain Text File
TEXTCLIPPING Mac OS X Text Clipping File
TFRPROJ theFrame Project File
TID TiddlyWiki Tiddler
TLB VAX Text Library
TM TeXmacs Document
TMD TextMaker Document
TMDX TextMaker Document
TMV TextMaker Template
TMVX TextMaker Document Template
TPC Topic Connection Placeholder
TRELBY Trelby File
TSV tab-separated values
TVJ TrueView Job Ticket
TXT Plain Text File
U3I U3 Application Information File
UNAUTH SiteMinder Unauthorized Message File
UNX Unix Text File
UOF Uniform Office Document
UOT Uniform Office Document
UPD Program Update Information
UTF8 Unicode UTF8-Encoded Text Document
UTXT Unicode Text File
VCF Variant Call Format File
VCT Visual Class Library Memo
VNT Mobile Phone vNote File
VPDOC VoodooPad Document
VW Volkswriter Text File
VWR Velconoe Write Document
WBK WordPerfect Workbook
WEBDOC Boxnet Web Document
WN WriteNow Text Document
WP WordPerfect Document
WP4 WordPerfect 4 Document
WP5 WordPerfect 5 Document
WP6 WordPerfect 6 Document
WP7 WordPerfect 7 Document
WPA ACT! Word Processing Document
WPD WordPerfect Document
WPD 602Text Word Processing Document
WPD ACT! 2 Word Processing Document
WPL DEC WPS Plus Text Document
WPS Microsoft Works Word Processor Document
WPS Kingsoft Writer Document
WPT WordPerfect Template
WPT Kingsoft Writer Template
WPW WP Works Word Processor File
WRI Microsoft Write Document
WSD WordStar Document
WTT Write! Document
WTX Text Document
XBDOC Xiosis Scribe Document
XBPLATE Xiosis Scribe Template
XDL Oracle Expert Definition Language File
XDL XML Schema File
XML an open data format
XWP XMLwriter Project
XWP Xerox Writer Text Document
XWP Crosstalk Session File
XY XYWrite Document
XY3 XYWrite III Document
XYP XYWrite Plus Document
XYW XYWrite for Windows Document
YAML an open data format
ZABW Compressed AbiWord Document File
ZRTF Nisus Compressed Rich Text File
ZW Chinese Text File
ZZQ Zyzzyva Quiz
ZZS Zyzzyva Search