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Load Office document
To load Office documents you need to create an instance of TElOfficeDocument class and call its Open() method, which allows to load a document from a file or a stream.
TElOfficeDocument class supports loading of Microsoft Office binary documents, OpenXML (Office Open XML, OOXML) documents, OpenXPS (Open XML Paper Specification, XPS) documents and OpenOffice (ODF, OpenDocument Format) documents.
To load a document of specific type, you need to create an instance of TElOfficeBinaryDocument, TElOfficeOpenXMLDocument, TElOfficeOpenXPSDocument or TElOpenOfficeDocument class and call the corresponding Open() method.