| AlternateContent | Represents a markup-compatibility alternate-content block (mc:AlternateContent): one or more AlternateContentChoice alternatives and an optional AlternateContentFallback. This is the shared model for DrawingML/chart hosts; WordprocessingML and PresentationML have their own host-level classes. |
| AlternateContentChoice | Represents a single mc:Choice alternative inside an AlternateContent block. The choice applies when the consumer understands every namespace prefix listed in Requires. |
| AlternateContentFallback | Represents the mc:Fallback content of an AlternateContent block - the markup a consumer uses when it understands none of the choices. |
| ContentTypeTable | |
| CustomBooleanProperty | |
| CustomDateProperty | |
| CustomDoubleProperty | |
| CustomIntegerProperty | |
| CustomProperty | |
| CustomStringProperty | |
| FileFormatException | The exception that is thrown when an input file or a data stream that is supposed to conform to a certain file format specification is malformed. |
| FileTable | |
| OfficeDocument | Represents an Office document. |
| Unit | |
| ValidationError | One problem found by a document's Validate method. |