After starting a new R session on Win10 with the default Sys.setlocale setting changed to “Sys.setlocale(“LC_CTYPE”, “ukrainian”)”, importing a UTF-8 BOM formatted csv-based data table as data.frame p0 with cyrillic characters runs smoothly without any problems. However, there is one specific Cyrillic character that doesn’t “translate” correctly as the cyrillic small letter known as Fita (“ѳ”). The character appears as “<U+0473>” within the string in column “Description”. Using a different Sys.setlocale (e.g. “russian”) did not solve the problem at all.