You can view the row-level differences between source and target data in the Data Viewer dialog.
Open the Data Viewer dialog in one of these ways:
The differences are highlighted with the following background colors:

Note
If a value in the row exists only in one data source, the Data Viewer opens only for that row. You can view it and modify, if needed.
To display record value in a specific format, on the Data Viewer toolbar, select the format to display data.
You can save data to a .txt file in one of these ways:
To copy the records, in the Data Viewer, right-click the record and select Copy. Alternatively, select the record and press Ctrl+C.