Hello,

As Semarchy xDI doesn't write the BOM when generating a UTF-8 file, is there a way to do it ?

To deal will this need, you just have to add a WriteTxtFile action set on "append before" in order to add the prefix in the file.

Here is the script to add in this action : 

%e(rhino){'\xEF\xBB\xBF'}e(rhino)%

It will add the string "\xEF\xBB\xBF" in the file as the BOM prefix.