I guess its because some of your fields contains values like "".

If you omit the msq then it works fine!

try like this:

LOAD
     Rowno() as Row,
     oid,
     cost,
     createDate,
     createdBy,
     customerOrderNumber,
     discount,
     expiryDate,
     margin,
     myAddress,
     myAssignedUser,
     myCRMOrganisation,
     myCRMSOSalesOrder,
     myGTSalesPerson,
     myQuoteStage,
     type,
     quoteNumber,
     summary,
     total,
     mySAModule,
     myCRMContact
FROM

(txt, codepage is 1252, embedded labels, delimiter is ',');