Hello, I encountered a situation similar as the one described by Tal above :
I use the RODBC library to export multiple dataframes into different sheets of an Excel file. My dataframes contain Character, Date and Numeric columns. library("RODBC") channel <- odbcConnectExcel(xls.file = myXlsFile, readOnly = FALSE) sqlSave(channel, data, tablename = "Table1", rownames = F, colnames = T) odbcClose(channel) When exported into Excel, *all * of my cells start with the ' character (which is different from Tal's situation where *only * non-numeric cells started with ' character). I need the columns that contain numeric data or dates to be imported into the appropriate format so that they can be manipulated (graphics etc). I found a macro that formats all the sheets in the appropriate way, but I would like to discover why even my numeric data (type Numeric in R) are imported as text. Regards, Juliette -- View this message in context: http://r.789695.n4.nabble.com/Exporting-a-data-frame-to-excel-using-sqlSave-adds-a-character-to-values-tp1016523p4509108.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.