.OPFファイルを開くには？

FlipAlbum Album

Ads	OS	Software
	WINDOWS	FlipAlbum

KEPServerEX Project Configuration

OS	Software
WINDOWS	KEPServerEX

Obsidium Project

OS	Software
WINDOWS	Obsidium

VisualOMP Project

OS	Software

Open Packaging Format

OS	Software
WINDOWS	Mobipocket eBook Creator Adobe Digital Editions Adobe InDesign Calibre
Linux	Okular