This should work, but I'm not 100% sure in all the cases
Starting table
jthi_0-1683810765715.png
1. Select the column that has values you want to separate
2. With the column selected go to Cols/Utilities/Text to Columns...
jthi_1-1683810795895.png
3. And use - as delimiter. Press OK
jthi_2-1683810816737.png
4. Go to Tables/Stack
5. Add your new columns to Stack Columns
jthi_3-1683810864243.png
6. Try which settings fit best for your case and press OK
7. From your new table, select one empty value (if there are any) from your newly created data columns and choose Select Matching Cells
jthi_4-1683810923897.png
8. Right click on row selector and delete rows
jthi_5-1683810942915.png
9. Delete and rename columns from your table
jthi_6-1683810968419.png
-Jarmo