document-format
Storing text docs in XML may run afoul of Microsoft patent
In the middle part of this decade, Microsoft engaged in an extensive effort to create open standards derived from its own XML-based file formats, such as XPS and Office XML . This work was widely interpreted as an effort to forestall adoption of competing formats, such as the Open Document Format, and concerns were raised about whether the Office XML format was severely encumbered by the company’s patents. Despite these fears, Microsoft ultimately saw its efforts succeed .
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