During an attempt to import Bulk Master/Child Record(s) you receive the following message:
Metadata Utility - Error - 2001
You canceled the previous operation.Cause: An 'invalid' 'MUWImp.xls' File was used.For additional details See sectionMetadata Utility - Operation - Bulk Import Process Master Records (BIPMR) (here)Metadata Utility - Operation - Bulk Import Process Child Records (BIPCR) (here)