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[0] USFM [1] This is the preferred Scripture markup file format for current use by field Bible translators. It uses “\” codes to mark book, chapter, verse, paragraphs, etc. There is a companion XML format, called USX, which maps one-to-one to USFM markers, and is defined by how Paratext generates and imports it. [2] Yes [4] Easy [5] Excellent: Paratext, Translation Editor, and multiple publication paths via SIL Pathway, Publishing Assistant, Haiola, etc. [6] Widely accepted and used [7] This is the most conservative and reliable Scripture file format to use for current projects. Although USFM is not an XML format, its companion USX is, and it can also be converted to USFX, which is XML, with no loss of information, using free software. USFM's twin, USX, is the preferred format of the Every Tribe Every Nation Digital Bible Library. [3] 
Yes
Bible File Encoding for Bible Translators, Publishers, and Software Developers
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