You have created a List Report using the List Designer, and are exporting the data from that report to a .csv file.
'Show Units' is not selected, and units are not displayed on the live report, but units are still being included in the export.
DX UIM 23.4.6 or prior
Operator Console - List Designer/Viewer
defect
This will be resolved in DX UIM 23.4.7 (CU7).
Approximate ETA for CU7 is March 2026 (subject to change).