Редактировать DOC в C# .NET

// Load the DOC file into Editor with the optional WordProcessingLoadOptions
Editor editor = new Editor("source.doc", delegate { return new WordProcessingLoadOptions(); });

// Create and adjust the edit options
WordProcessingEditOptions editOptions = new WordProcessingEditOptions();

// Open input DOC document for edit — obtain an intermediate document, that can be edited
EditableDocument beforeEdit = editor.Edit(editOptions);

// Grab DOC document content and associated resources from editable document
string content = beforeEdit.GetContent();

// Send the content to WYSIWYG-editor, edit it there, and send edited content back to the server-side
// This step simulates a such operation
string updatedContent = content.Replace("Subtitle", "Edited subtitle");

// Grab edited content and resources from WYSIWYG-editor and create a new EditableDocument instance from it
EditableDocument afterEdit = EditableDocument.FromMarkup(updatedContent, null);

// Create a save options and select a desired output format
WordProcessingSaveOptions saveOptions = new WordProcessingSaveOptions(Formats.WordProcessingFormats.Doc);

// Save edited DOC document to the file
editor.Save(afterEdit, "edited.doc", saveOptions);