Handling data encoding issues while loading data to SQL from Script (Notepad++)
One option might be to have them run the script via sqlcmd with the codepage options:

sqlcmd -f &lt;codepage&gt; | i:&lt;codepage&gt;,o:&lt;codepage&gt;


Alternately, save the source files with UTF-8 encoding (code page 65001), with a byte-order mark.