private static Dictionary<string, string> _replacePatterns = new Dictionary<string, string>()

  {

    { "OPPONENT", "Atlanta Knight" },

    { "GAME_TIME", "7:30pm" },

    { "GAME_NUMBER", "161" },

    { "DATE", "October 18 2022" },

  };

  static void Main( string[] args )

  {

                

    // Load a document.

    using( var document = DocX.Load( "ReplaceText.docx" ) )

    {

      // Check if all the replace patterns are used in the loaded document.

      if( document.FindUniqueByPattern( @"<[\w \=]{4,}>", RegexOptions.IgnoreCase ).Count > 0 )

      {

        // Do the replacement of all the found tags and with green bold strings.

        var replaceTextOptions = new FunctionReplaceTextOptions()

        {

          FindPattern = "<(.*?)>",

          RegexMatchHandler = Program.ReplaceFunc,

          RegExOptions = RegexOptions.IgnoreCase,

          NewFormatting = new Formatting() { Bold = true, FontColor = System.Drawing.Color.Green }

        };

        document.ReplaceText( replaceTextOptions );

        // Save this document to disk.

        document.SaveAs( "ReplacedText.docx" );

      }

    }

  }

  private static string ReplaceFunc( string findStr )

  {

    if( _replacePatterns.ContainsKey( findStr ) )

    {

      return _replacePatterns[ findStr ];

    }

    return findStr;

  }