As reported by Jacques
"Actually the path is missing in line 191 (same for XML, line 190) for Windows to work:
writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outpath + "/" + filename), "UTF-8")))
I also think it should be used for *nix OS, else the file is always written at OFBiz root"
If user provided file name and output directory in that case the entity xml files are generated at both locations.
As in attached image we have files created at both locations, i.e. at root we have test.xml and in user provided output directory we have multiple files with [entityname].xml.
The expected change would be if user provided both output directory and filename then file should be created in given directory with given filename.