If I run "dos2unix" on a ".ui" file, then load it into Qt Creator on a windows machine (win7 ultimate 64bit) then edit the layout with "Qt Designer" (presumably also just running Qt Designer as standalone does this) after making some change and saving the file back out, then the line endings are restored back to CRLF instead of just LF as they were when the file was read in. This is inconsistent behavior from QT editors in general which seem to preserve whatever line endings were in the file when it was opened.