Replacement File Structure

The imported text file must meet the following requirements:

• It must contain data of two columns.
  • 1st column — replaced value.
  • 2nd column — new value.
• The tabulation character is used to separate the columns.
• Columns headers are not used.
• File encoding: UTF-8.

When importing the file that contains single inquiry character ?, this character will be interpreted as <null> (null value). It must be taken into account if <null> values to be replaced with other values are present in the data, or it is required to replace some values with <null>.