Hi All, WriteXLS version 6.1.0 has been released and is in the process of becoming available via CRAN. This is a bug fix release, as in version 6.0.0, there were occasions where certain integer values in source data frames, containing specific patterns of trailing and embedded zeros, were written to the Excel worksheets as left justified text values, as opposed to right justified numeric values. Please download and install the updated version at your convenience. Thanks and regards, Marc Schwartz