Currently, RadSpreadProcessing doesn't support out of the box CopyFromRecordset Method
but it can be easily achieved. You'll need to iterate over the rows and cells of a worksheet and set the values from your data to the cells. To learn more about this, you can read the article for Get, Set and Clear Cell Properties
or SpreadProcessing - Complete Solution to Create, Modify and Export Spreadsheets
I hope this helps. Let me know if you need some further assistance.
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