Extension	File Type Developer	File Category	File Type Description	Primary Software	Primary Software Developer
.OBML	Opera Software	Web Files	Opera Mini Saved Web Page	Opera Mini	Opera Software
.OBML16	Opera Software	Web Files	Opera Mini Saved Web Page	Opera Mini	Opera Software
.OPML	The Omni Group	Web Files	Outline Processor Markup Language File	CS Odessa ConceptDraw MINDMAP	CS Odessa
.OTH	Apache Software Foundation	Web Files	OpenDocument HTML Template	Apache OpenOffice	Apache Software Foundation

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