FileViewPro

延期	文件类型开发人员	文件类别	文件类型描述	软件	软件开发人员
.O1	Open Source	数据文件	Object File For GO321v1 Platform	Free Pascal	Open Source
.OBJ	Wavefront Technologies	3D图像文件	Wavefront 3D Object File	MeshLab	Open Source
.OBML	Opera Software	网络文件	Opera Mini Saved Web Page	MicroEmulator	Open Source
.OBML16	Opera Software	网络文件	Opera Mini Saved Web Page	MicroEmulator	Open Source
.OBS	Department of Wind Energy at the Technical University of Denmark, Denmark	数据文件	WAsP Obstacle List Data	Open Broadcaster Software	Open Source
.OBT	Open Source	设置文件	Openbox Theme File	Openbox	Open Source
.OCSP	Open Source	数据文件	HAProxy OCSP Data File	HAProxy	Open Source
.OCT	Radiance Community	3D图像文件	Radiance Octree File	RADIANCE	Open Source
.ODD	Coby Electronics Corporation	音频文件	Coby Voice Recorder Data	TEI Tools	Open Source
.ODF	Oracle Corporation	不常见的文件	OpenDocument Formula	AbiWord	Open Source
.ODM	Open Source	文本文件	OpenDocument Master Document	AbiWord	Open Source
.ODR	Open Source	数据文件	OpenIV Model Data	OpenIV	Open Source
.ODT	Oracle Corporation	文本文件	OpenDocument Text Document	AbiWord	Open Source
.OEB	IDPF (International Digital Publishing Forum)	电子书文件	Open eBook File	Calibre	Open Source
.OEM	Microsoft Corporation	设置文件	Original Equipment Manufacturer Setup File	OEM Information Editor	Open Source
.OFF	Open Source	3D图像文件	Object File Format	MeshLab	Open Source
.OFX	Intuit, Inc.	数据文件	Open Financial Exchange File	GnuCash	Open Source
.OGA	Xiph.Org	音频文件	Ogg Vorbis Audio File	IrfanView	Open Source
.OGG	Xiph.Org	音频文件	Ogg Vorbis Audio File	IrfanView	Open Source
.OGX	Xiph.Org	视频文件	Ogg Vorbis Multiplexed Media File	XMMS	Open Source
.OIV	Open Source	插件文件	OpenIV Mod Package File	OpenIV	Open Source
.OKT	Open Source	音频文件	Oktalyzer Module	ModPlug Player	Open Source
.OMO	Open Source	开发者文件	OMake Object File	OMake	Open Source
.OO	Open Source	不常见的文件	Free Pascal Object File For OS/2 Version	Free Pascal	Open Source
.OOA	Sublime HQ Pty Ltd	数据文件	OOA Interchange Format Data	PSPad	Open Source
.OP	Open Source	数据文件	OpenPAT Report	OpenPAT	Open Source
.OPML	The Omni Group	网络文件	Outline Processor Markup Language File	OPML Editor	Open Source
.OPT	LexisNexis	数据库文件	Concordance Database File	AGiliTy	Open Source
.OPUS	Open Source	音频文件	Opus Audio File	MediaInfo Player	Open Source
.OS	Open Source	开发者文件	ObjectScript Source File	ObjectDevel	Open Source
.OSC	OpenStreetMap	GIS文件	OpenStreetMap Change File	osmchange	Open Source
.OSZ	Ppy Pty Ltd	游戏文件	Osu! Beatmap File	opsu!	Open Source
.OTD	Open Source	游戏文件	OpenIV Texture Data	OpenIV	Open Source
.OTF	Open Source	字体文件	OpenType Font	FontForge	Open Source
.OTRKEY	OnlineTvRecorder.com (OTR)	视频文件	OnlineTvRecorder Encoded Video File	otrtool	Open Source
.OUT	Open Source	可执行文件	Compiled Executable File	Linux	Open Source
.OW	Open Source	开发者文件	Free Pascal 1.0.x Object File	Free Pascal	Open Source
.OX	Open Source	开发者文件	Ox Source Code	OX Professional	Open Source
.OXO	Open Source	设置文件	Ox Object-oriented Matrix Programming Language Source Code	OX Professional	Open Source

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