Let’s add the French language as the interface language, for example. To do that:
Open MetaEdit and add the French language by selecting Settings → Interface languages.
Click on the arrow next to the
Module field. Then select
Utilities → Edit resources → Export resources to MS Excel.
In the
MS Excel file, find the "Language:fr" column and fill out its cells.
Import the resources back. To do this, click on the arrow next to the
Module field. Then select
Utilities → Edit resources → Import resources from MS Excel.