aspose.words.saving.IDocumentPartSavingCallback class. Implement this interface if you want to receive notifications and control how Aspose.Words saves document parts when exporting a document to [SaveFormat.HTML](../../aspose.words/saveformat/#HTML) or [SaveFormat.EPUB](../../aspose.words/saveformat/#EPUB) format....aspose.words.saving.IDocumentPartSavingCallback class. Implement this interface if you want to receive notifications and control how Aspose.Words saves document parts when exporting a document to [SaveFormat.HTML](../../aspose.words/saveformat/#HTML) or [SaveFormat.EPUB](../../aspose.words/saveformat/#EPUB) format.