Hello Yutaka,
Thank you for the prompt response. I am glad to hear that the issue is understood and will soon be corrected. I would send you my reduced file, but it still contains data involving other people which should probably be kept private. Even though I have pared it down a lot from the original, it is not easy to work with (mostly because of the large number of columns still present), so is difficult to ‘clean’. I would be glad to try out a new test version, if you would care to send it to me when ready. I am not sure if the source file contains embedded newlines but will look into that later.