Hello tkdweber. I'm also annoyed at same problem.
I installed xlsReadWriter today and entered x <- read.xls("data.xls",sheet=1) But I got Error Message: 以下にエラー .Call("ReadXls", file, colNames, sheet, type, from, rowNames, : 引数の個数(11)が不正です。10 個が ReadXls に対しては必要です (It's Japanese.Its English translation is the same as yours) -- View this message in context: http://r.789695.n4.nabble.com/ReadWrite-xls-problem-tp3078348p3081459.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.