See more related video:Partial Import
When you need to import only part of a data file -- for example, the file contains data that is of no interest or the file is large and slow to import -- you can opt for a partial file import.
When you have imported data with the CSV Connector, you can hover on the Connector icon to see which portion of your data have been imported.
Partial Import controls for most file types look similar to those shown in the following image and described in the table below.
Not all the import tools support Partial Import
Re-importing, as the name suggests, allows you to repeat the import of a file that has been imported previously. You may want to use this feature when the imported file has been updated -- direct import with no change of options -- or you want to use different import options. Both are performed via menu commands on the File: Import menu. The re-importing feature is available for ASCII and some third-party files.