Extension	File Type Developer	File Category	File Type Description	Software	Software Developer
.OBI	Microsoft Corporation	Settings Files	Outlook RSS Subscription File	Microsoft Outlook 2016	Microsoft Corporation
.OLK	Microsoft Corporation	Data Files	Outlook Address Book File	Microsoft Outlook 2016	Microsoft Corporation
.OLM	Microsoft Corporation	Data Files	Mac Outlook Database File	Microsoft Outlook 2016	Microsoft Corporation
.OST	Microsoft Corporation	Uncommon Files	Outlook Offline Data File	Microsoft Outlook 2016	Microsoft Corporation

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