The out of memory exception occurs while exporting the GridControl with more number of rows and columns. This exception occurs because new cell style will be created for each and every cell in XlsIO while exporting.
Hence you can overcome this issue by setting the property ExportStyle of ExcelExportingOptions as false. Please find the code example for your reference.
Note: While using this option, cell styles are not exported. It will export the cell content only.
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