Sorry for the typing errors. Now, it seems, output looks same as input. No changes made. I'm puzzled ...
awk 'BEGIN{FS=",";OFS=","} ; {NF--; print}' test3.csv > test4.csv
COMPANY,TRANS-TYPE,INVOICE,CUSTOMER,STATUS,GL-STATUS,BATCH-NBR,PROCESS-LEVEL,TRANS-DATE,GL-DATE,DESC,ORIG-AMT,TEST...