Thanks for quick reply. I expect them to be renamed the same way as other files. Often subtitle files downloaded from the 'Net have .txt extension since they are recognized as "text/plain" MIME media type by browser and written as such. On the other side video players often do not care about file ...

It happened since version 4.7 and happens in latest HEAD (r4044). When I drag'n'drop some files into filebot window, *.txt files seem to be ignored. They do not appear on the left side panel at all. If I rename them for example to *.srt they are recognized and filebot works just fine renaming them ...