In single-select file mode, return result (and select default) via row number in answer parameter, rather than row text in array parameter. Selected row data is still returned in the array parameter though. Identifying the selection via the row number rather than the row data eliminates ambiguities when portions of the row data are common to more than one row, as well as when columns using the right justification format option, but not right-justified in the file data, get stripped.