Preservation

Linked Open Data for Email Formats

Email records are created or received via an electronic mail system, including brief notes, formal or substantive narrative documents, and any attachments, such as word processing and other electronic documents, which may be transmitted with the message.

The significant properties of email records are documented in the Email Preservation Plan, which can be used as test criteria for tools and processes used in format transformations. 

NARA makes its Linked Open Data available in Resource Description Framework Terse RDF Triple Language or RDF Turtle (.ttl files). These files can be opened in any text editor. The Digital Preservation Framework as Linked Open Data includes the same elements as are available in the version of the Preservation Plans on GitHub.

These plans are not exhaustive nor universally applicable proposed actions and recommended or endorsed tools: these represent file formats and variant versions in NARA holdings, the current NARA risk assessment, processing capabilities, and tools in use at NARA.

 

 

Format Name File Extension(s) Digital Preservation Framework Category/Categories NARA Format ID NARA Linked Open Data TTL
American Standard Code for Information Interchange (ASCII) 7-bit Text txt|asc|csv|tab Textual and Word Processing NF00113 https://www.archives.gov/files/lod/dpframework/id/NF00113.ttl
American Standard Code for Information Interchange (ASCII) 8-bit Text txt|asc|csv|tab Textual and Word Processing NF00114 https://www.archives.gov/files/lod/dpframework/id/NF00114.ttl
American Standard Code for Information Interchange (ASCII) unspecified version asc Textual and Word Processing NF00846 https://www.archives.gov/files/lod/dpframework/id/NF00846.ttl
American Standard Code for Information Interchange (ASCII), Extended, Variable-width encoding Unicode (Universal Coded Character Set) Transformation Format (UTF) txt|utf|utf8|utf16 Textual and Word Processing NF00429 https://www.archives.gov/files/lod/dpframework/id/NF00429.ttl
Digital Equipment Corp (DEC) WPS Plus dx|wpl Textual and Word Processing NF00156 https://www.archives.gov/files/lod/dpframework/id/NF00156.ttl
EndNote Import File enw|enr Textual and Word Processing NF00172 https://www.archives.gov/files/lod/dpframework/id/NF00172.ttl
Extensible Forms Description Language (XFDL) xfdl Web Records|Software and Code|Structured Data|Textual and Word Processing NF00686 https://www.archives.gov/files/lod/dpframework/id/NF00686.ttl
eXtensible Markup Language 1.0 xml Web Records|Software and Code|Structured Data|Textual and Word Processing NF00187 https://www.archives.gov/files/lod/dpframework/id/NF00187.ttl
eXtensible Markup Language 1.1 xml Web Records|Software and Code|Structured Data|Textual and Word Processing NF00561 https://www.archives.gov/files/lod/dpframework/id/NF00561.ttl
eXtensible Markup Language Document Type Definition dtd Web Records|Software and Code|Textual and Word Processing NF00162 https://www.archives.gov/files/lod/dpframework/id/NF00162.ttl
eXtensible Markup Language Schema xsd Web Records|Software and Code|Textual and Word Processing NF00188 https://www.archives.gov/files/lod/dpframework/id/NF00188.ttl
eXtensible Markup Language unspecified version xml Web Records|Software and Code|Structured Data|Textual and Word Processing NF00654 https://www.archives.gov/files/lod/dpframework/id/NF00654.ttl
eXtensible Style Language 1.0 xsl|xslt Web Records|Software and Code|Textual and Word Processing NF00190 https://www.archives.gov/files/lod/dpframework/id/NF00190.ttl
eXtensible Style Language 2.0 xsl|xslt Web Records|Software and Code|Textual and Word Processing NF00562 https://www.archives.gov/files/lod/dpframework/id/NF00562.ttl
eXtensible Style Language 3.0 xsl|xslt Web Records|Software and Code|Textual and Word Processing NF00563 https://www.archives.gov/files/lod/dpframework/id/NF00563.ttl
eXtensible Style Language unspecified version xsl|xslt Web Records|Software and Code|Textual and Word Processing NF00850 https://www.archives.gov/files/lod/dpframework/id/NF00850.ttl
Letter ltr Textual and Word Processing NF00714 https://www.archives.gov/files/lod/dpframework/id/NF00714.ttl
Microsoft Office AutoCorrect List acl Textual and Word Processing NF00791 https://www.archives.gov/files/lod/dpframework/id/NF00791.ttl
Microsoft Office Theme (Windows 2007-onwards) thmx Textual and Word Processing NF00839 https://www.archives.gov/files/lod/dpframework/id/NF00839.ttl
Microsoft Word Auto-save Document Format asd Textual and Word Processing NF00706 https://www.archives.gov/files/lod/dpframework/id/NF00706.ttl
Microsoft Word Backup File, version 97-onwards wbk Textual and Word Processing NF00304 https://www.archives.gov/files/lod/dpframework/id/NF00304.ttl
Microsoft Word for Macintosh 5.0 doc|mcw Textual and Word Processing NF00305 https://www.archives.gov/files/lod/dpframework/id/NF00305.ttl
Microsoft Word for Macintosh 5.1 doc Textual and Word Processing NF00587 https://www.archives.gov/files/lod/dpframework/id/NF00587.ttl
Microsoft Word for Macintosh 6.0 doc Textual and Word Processing NF00306 https://www.archives.gov/files/lod/dpframework/id/NF00306.ttl
Microsoft Word for Macintosh v.X doc Textual and Word Processing NF00307 https://www.archives.gov/files/lod/dpframework/id/NF00307.ttl
Microsoft Word for MS-DOS 1-4 doc Textual and Word Processing NF00309 https://www.archives.gov/files/lod/dpframework/id/NF00309.ttl
Microsoft Word for MS-DOS 5 doc Textual and Word Processing NF00591 https://www.archives.gov/files/lod/dpframework/id/NF00591.ttl
Microsoft Word for MS-DOS 5.5 doc Textual and Word Processing NF00592 https://www.archives.gov/files/lod/dpframework/id/NF00592.ttl
Microsoft Word for Windows 2.0 doc Textual and Word Processing NF00310 https://www.archives.gov/files/lod/dpframework/id/NF00310.ttl
Microsoft Word for Windows 2007-onwards (OOXML) docx Textual and Word Processing NF00311 https://www.archives.gov/files/lod/dpframework/id/NF00311.ttl
Microsoft Word for Windows 6.0-95 doc|dot Textual and Word Processing NF00302 https://www.archives.gov/files/lod/dpframework/id/NF00302.ttl
Microsoft Word for Windows 97-2003 doc|dot Textual and Word Processing NF00303 https://www.archives.gov/files/lod/dpframework/id/NF00303.ttl
Microsoft Word for Windows 97-2003 Template dot Textual and Word Processing NF00588 https://www.archives.gov/files/lod/dpframework/id/NF00588.ttl
Microsoft Word for Windows Macro 2007-onwards (OOXML) docm Textual and Word Processing NF00312 https://www.archives.gov/files/lod/dpframework/id/NF00312.ttl
Microsoft Word Macro-enabled Document Template dotm Textual and Word Processing NF00589 https://www.archives.gov/files/lod/dpframework/id/NF00589.ttl
Microsoft Word Open Office XML Template dotx Textual and Word Processing NF00590 https://www.archives.gov/files/lod/dpframework/id/NF00590.ttl
Microsoft Word unspecified version doc Textual and Word Processing NF00659 https://www.archives.gov/files/lod/dpframework/id/NF00659.ttl
OmniPage Pro Document 5-9 met Textual and Word Processing NF00344 https://www.archives.gov/files/lod/dpframework/id/NF00344.ttl
OpenDocument Text 1.0 odt|fodt|ott Textual and Word Processing NF00345 https://www.archives.gov/files/lod/dpframework/id/NF00345.ttl
OpenDocument Text 1.1 odt|fodt|ott Textual and Word Processing NF00507 https://www.archives.gov/files/lod/dpframework/id/NF00507.ttl
OpenDocument Text 1.2 odt|fodt|ott Textual and Word Processing NF00508 https://www.archives.gov/files/lod/dpframework/id/NF00508.ttl
OpenDocument Text 1.3 odt|fodt|ott Textual and Word Processing NF00801 https://www.archives.gov/files/lod/dpframework/id/NF00801.ttl
Plain Text Plain_Text|txt|text|asc|rte Textual and Word Processing NF00360 https://www.archives.gov/files/lod/dpframework/id/NF00360.ttl
Portable Document Format (PDF) unspecified version pdf Presentation and Publishing|Textual and Word Processing NF00361 https://www.archives.gov/files/lod/dpframework/id/NF00361.ttl
Portable Document Format (PDF) version 1.0 pdf Presentation and Publishing|Textual and Word Processing NF00362 https://www.archives.gov/files/lod/dpframework/id/NF00362.ttl
Portable Document Format (PDF) version 1.1 pdf Presentation and Publishing|Textual and Word Processing NF00363 https://www.archives.gov/files/lod/dpframework/id/NF00363.ttl
Portable Document Format (PDF) version 1.2 pdf Presentation and Publishing|Textual and Word Processing NF00364 https://www.archives.gov/files/lod/dpframework/id/NF00364.ttl
Portable Document Format (PDF) version 1.3 pdf Presentation and Publishing|Textual and Word Processing NF00365 https://www.archives.gov/files/lod/dpframework/id/NF00365.ttl
Portable Document Format (PDF) version 1.4 pdf Presentation and Publishing|Textual and Word Processing NF00366 https://www.archives.gov/files/lod/dpframework/id/NF00366.ttl
Portable Document Format (PDF) version 1.5 pdf Presentation and Publishing|Textual and Word Processing NF00367 https://www.archives.gov/files/lod/dpframework/id/NF00367.ttl
Portable Document Format (PDF) version 1.6 pdf Presentation and Publishing|Textual and Word Processing NF00368 https://www.archives.gov/files/lod/dpframework/id/NF00368.ttl
Portable Document Format (PDF) version 1.7 pdf Presentation and Publishing|Textual and Word Processing NF00369 https://www.archives.gov/files/lod/dpframework/id/NF00369.ttl
Portable Document Format (PDF) version 2.0 pdf Presentation and Publishing|Textual and Word Processing NF00662 https://www.archives.gov/files/lod/dpframework/id/NF00662.ttl
Portable Document Format/Archiving (PDF/A-1a) accessible pdf Presentation and Publishing|Textual and Word Processing NF00371 https://www.archives.gov/files/lod/dpframework/id/NF00371.ttl
Portable Document Format/Archiving (PDF/A-1b) basic pdf Presentation and Publishing|Textual and Word Processing NF00372 https://www.archives.gov/files/lod/dpframework/id/NF00372.ttl
Portable Document Format/Archiving (PDF/A-2a) accessible pdf Presentation and Publishing|Textual and Word Processing NF00602 https://www.archives.gov/files/lod/dpframework/id/NF00602.ttl
Portable Document Format/Archiving (PDF/A-2b) basic pdf Presentation and Publishing|Textual and Word Processing NF00634 https://www.archives.gov/files/lod/dpframework/id/NF00634.ttl
Portable Document Format/Archiving (PDF/A-2u) unicode pdf Presentation and Publishing|Textual and Word Processing NF00642 https://www.archives.gov/files/lod/dpframework/id/NF00642.ttl
Portable Document Format/Archiving (PDF/A-3a) accessible pdf Presentation and Publishing|Textual and Word Processing NF00643 https://www.archives.gov/files/lod/dpframework/id/NF00643.ttl
Portable Document Format/Archiving (PDF/A-3b) basic pdf Presentation and Publishing|Textual and Word Processing NF00644 https://www.archives.gov/files/lod/dpframework/id/NF00644.ttl
Portable Document Format/Archiving (PDF/A-3u) unicode pdf Presentation and Publishing|Textual and Word Processing NF00645 https://www.archives.gov/files/lod/dpframework/id/NF00645.ttl
Portable Document Format/Archiving (PDF/A-4) pdf Presentation and Publishing|Textual and Word Processing NF00646 https://www.archives.gov/files/lod/dpframework/id/NF00646.ttl
Portable Document Format/Archiving (PDF/A) unspecified version pdf Presentation and Publishing|Textual and Word Processing NF00370 https://www.archives.gov/files/lod/dpframework/id/NF00370.ttl
Rich Text Format 1.0 rtf Textual and Word Processing NF00398 https://www.archives.gov/files/lod/dpframework/id/NF00398.ttl
Rich Text Format 1.1 rtf Textual and Word Processing NF00606 https://www.archives.gov/files/lod/dpframework/id/NF00606.ttl
Rich Text Format 1.2 rtf Textual and Word Processing NF00607 https://www.archives.gov/files/lod/dpframework/id/NF00607.ttl
Rich Text Format 1.3 rtf Textual and Word Processing NF00608 https://www.archives.gov/files/lod/dpframework/id/NF00608.ttl
Rich Text Format 1.4 rtf Textual and Word Processing NF00609 https://www.archives.gov/files/lod/dpframework/id/NF00609.ttl
Rich Text Format 1.5 rtf Textual and Word Processing NF00610 https://www.archives.gov/files/lod/dpframework/id/NF00610.ttl
Rich Text Format 1.6 rtf Textual and Word Processing NF00611 https://www.archives.gov/files/lod/dpframework/id/NF00611.ttl
Rich Text Format 1.7 rtf Textual and Word Processing NF00612 https://www.archives.gov/files/lod/dpframework/id/NF00612.ttl
Rich Text Format 1.8 rtf Textual and Word Processing NF00613 https://www.archives.gov/files/lod/dpframework/id/NF00613.ttl
Rich Text Format 1.9 rtf Textual and Word Processing NF00614 https://www.archives.gov/files/lod/dpframework/id/NF00614.ttl
Rich Text Format unspecified version rtf Textual and Word Processing NF00660 https://www.archives.gov/files/lod/dpframework/id/NF00660.ttl
WordPerfect 4 for DOS wpd|wp4 Textual and Word Processing NF00633 https://www.archives.gov/files/lod/dpframework/id/NF00633.ttl
WordPerfect 5.0 for DOS wpd|wp5|wp|w50|doc Textual and Word Processing NF00455 https://www.archives.gov/files/lod/dpframework/id/NF00455.ttl
WordPerfect 5.1 for DOS/Windows wpd|wp5|wp|w51|doc Textual and Word Processing NF00453 https://www.archives.gov/files/lod/dpframework/id/NF00453.ttl
WordPerfect 5.2 for Windows wpd|wp5|wp|w52 Textual and Word Processing NF00454 https://www.archives.gov/files/lod/dpframework/id/NF00454.ttl
WordPerfect 6.0 for DOS/Windows wpd|wp6|wp|w60|w61|w62|doc Textual and Word Processing NF00533 https://www.archives.gov/files/lod/dpframework/id/NF00533.ttl
WordPerfect 6.x-onwards for Windows wpd|wp6|wp|w60|doc Textual and Word Processing NF00452 https://www.archives.gov/files/lod/dpframework/id/NF00452.ttl
WordPerfect for DOS unspecified version wpd|wp Textual and Word Processing NF00838 https://www.archives.gov/files/lod/dpframework/id/NF00838.ttl
WordPerfect Macro wcm|wpm Textual and Word Processing NF00729 https://www.archives.gov/files/lod/dpframework/id/NF00729.ttl
WordPerfect Secondary File 5.1/5.2 wpd Textual and Word Processing NF00456 https://www.archives.gov/files/lod/dpframework/id/NF00456.ttl
WordPerfect Template wpt Textual and Word Processing NF00789 https://www.archives.gov/files/lod/dpframework/id/NF00789.ttl
WordPerfect unspecified version wpd|wp Textual and Word Processing NF00767 https://www.archives.gov/files/lod/dpframework/id/NF00767.ttl
Write for Windows 3.0 wri Textual and Word Processing NF00457 https://www.archives.gov/files/lod/dpframework/id/NF00457.ttl
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