Try this way i am loading your table from the excel source file you can load your table because there is comma( , ) in the data.
subfield(cust_name_key,right(cust_name_key,9)) as name,
PurgeChar(right(cust_name_key,9),'(,)') as Key;
(ooxml, embedded labels, table is Sheet1);
LOAD * Resident Source Where Len(name)>0;
DROP Table Source;