public byte[] SaveDocument(
    DocumentFormat documentFormat
)

Public Function SaveDocument(
    documentFormat As DocumentFormat
) As Byte()

using DevExpress.XtraRichEdit;
// ...

RichEditDocumentServer wordProcessor = new RichEditDocumentServer()

// Save a document to a byte array to store it in a database.
byte[] docBytes = wordProcessor.SaveDocument(DocumentFormat.Docx);

// ...

// Load the saved document from a byte array.
wordProcessor.LoadDocument(docBytes, DocumentFormat.Docx);

Imports DevExpress.XtraRichEdit
' ...

Dim wordProcessor As New RichEditDocumentServer()

' Save a document to a byte array to store it in a database.
Dim docBytes() As Byte = wordProcessor.SaveDocument(DocumentFormat.Docx)

' ...

' Load the saved document from a byte array.
wordProcessor.LoadDocument(docBytes, DocumentFormat.Docx)