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This article discusses some common molecular file formats, including usage and converting between them. ==Distinguishing formats== Chemical information is usually provided as files or streams and many formats have been created, with varying degrees of documentation. The format can be found by three means (see chemical MIME section) * ''file extension'' (usually 3 letters). This is widely used, but fragile as common suffixes such as ".mol" and ".dat" are used by many systems, including non-chemical ones. * ''self-describing files'' where the format information is included in the file. Examples are CIF and CML. * ''chemical/MIME type'' added by a chemically-aware server. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chemical file format」の詳細全文を読む スポンサード リンク
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