You can copy the Compare Results to Excel with Edit > Export Results to Excel.
A dialog box will be shown where you can specify the name of the Excel file and the name of the worksheet.
Exporting to Excel is slow; this feature is not recommended if you have a lot of data. If your tables are large, you can reduce the amount of data in the result grid by specifying the option Only show rows that are different.
The data exported to Excel will include the highlight color indicating that values are different. However the first column in the Excel file will not have the tick or cross icons showing the status the cell. Exporting images to Excel is very slow; instead the first column will have a color indicating the status of the row: