To do that you need:

• Text file (in utf-8 encoding) with the list of terms that you want to import.
• The list must contain one term per line
• The directory “/doc” in the your TemaTres instalation directory must have write permissions.
• To express a hierarchical relationship, you must put one tabulated space after each carriage return for each broader term (BT) and her narrower term (NT).

Example for hierarchical relationship:

South America
 Argentina
  Buenos Aires
 Brazil
 Uruguay

• To express equivalence between terms, put equal symbol (=) between each prefered term and her non-prefered term.

Example for equivalence:
United States of America = USA