About RTD

What is RTD and DDE in Excel?


Dynamic Data Exchange (DDE) is a Microsoft technology for transferring information between applications and is the older of the two technologies. DDE utilises Windows messaging to send and receive data.


Real-time Data (RTD) is a newer technology introduced specifically for Microsoft Excel for high-speed data transfer, making it an ideal choice for financial data applications. RTD utilises a combined push and pull technology to allow for fast updates of data into an Excel sheet.

Posted in Excel + VBA Tips.


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