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When you save your Excel file into HTML, comments are not exported. However, Aspose.Cells provides this feature using the HtmlSaveOptions.IsExportComments property. If you set it true, then HTML will also display comments present in your Excel file.
The following sample code explains the usage of HtmlSaveOptions.IsExportComments property. The screenshot shows the effect of the code on the HTML when it is set to true. Please download the sample Excel file and the generated HTML for a reference.

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