If you look at the new file in raw mode, you'll see that it's chock full of ASCII nuls, while the old file has none. This is probably what's giving you the problems, because R does not allow strings containing embedded nul characters. (I believe this is because Nul in strings is pretty dangerous in programming, because they are often used to delimit the end of strings, and so allowing you to read it in directly can be used for various code injection exploits.)
To read the new data files, you need some way of dealing with the file as a raw stream, and stripping out all the nul characters before converting back to character. Investigate ?readBin... Zhou -- View this message in context: http://r.789695.n4.nabble.com/Could-incomplete-final-line-found-be-more-serious-than-a-warning-tp4630932p4630944.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.