If manual export is possible for you (i.e., not using the program), the next path will be the easiest way to export these defects.
In QC 9.2 (possibly present in earlier versions), Defects has an Export/All menu that exports defects in your defect grid to an Excel worksheet.
Exported fields are those that are shown in the defect grid, which can be configured using the "Select Columns" button (looks like a green grid).
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