if (-e $datefile) {
    open (BOBIN, ">>$datefile") || die "Cannot Open File $datefile for
+ writing: $!"; # Open Data file
} else {
     ### Else open directory where files data files are located
     #   Sort in descending order, pick out first file
     #   And e-mail it
     #   Then create a new file with current data as name
     open (BOBIN, ">$datefile") || die "Cannot create File $datefile f
+or writing: $!";
}