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Name EndNote Library
Version 1-9
Other names  
Identifiers PUID:  fmt/325
Classification Text (Structured)
Description EndNote Library file format is generated and used via EndNote reference management software application. A software intended for the management of bibliographies and references when producing academic text or reports. Endnote software was first launched in 1989 by Niles & Associates, then in 2000 was acquired by Institute for Scientific Information’s Research Soft Division, and since 2016 owned by Clarivate. The EndNote Library file format stores the references and citations in so called 'libraries' used with the software. Users of EndNote application can create their own EndNote Library files, as well as upload EndNote Library files onto their software. The latter versions of this format, starting from version 8, include .data folder to accompany the EndNote Library format. The .data folder is automatically created by EndNote, intended to store attachments. Following this update, the .data folder is recommended to be present in the EndNote Library file structure in order to use the EndNote Library format with the EndNote software. This entry describes earliest versions of the application, from the first version up to and including version 9. Following versions started named as X and were sequential to version X9, then following versions were named as version 20. Subsequent X versions altered their file format structure to ZIP based container and are included in separate PRONOM entry. Please see the full version history using the Web Archive Wikipedia entry link included in the Notes section.
Orientation Text
Byte order  
Related file formats Is previous version of EndNote Library (X - X9)
Is previous version of EndNote Compressed Library (X - X9)
Technical Environment  
Supported until  
Format Risk  
Developed by None.
Supported by None.
Source Digital Preservation Department / The National Archives
Source date 31 Jan 2011
Source description  
Last updated 13 May 2022
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