You have created a List View using the List Designer in Operator Console and exported the data to .csv.
The .csv file contains an extra space before each field/after each comma.
Instead of : field1,field2,field3,field4
the file looks like: field1, field2, field3, field4
This causes other tools to treat the data as if it starts with a blank space, making it difficult to import and sort the data appropriately.
DX UIM 23.4.6 and prior
Operator Console - List Designer and Viewer
This will be resolved in DX UIM 23.4.7 (CU7).
ETA for CU7 is March 2026 (subject to change).