Merge pull request extrame#63 from simon3z/master

Add Date Format support to NumberCol

col.go

@@ -8,7 +8,7 @@ import (
 
 	"time"
 
-	"github.com/extrame/goyymmdd"
+	yymmdd "github.com/extrame/goyymmdd"
 )
 
 //content type
@@ -54,16 +54,15 @@ func (xf *XfRk) String(wb *WorkBook) string {
 		fNo := wb.Xfs[idx].formatNo()
 		if fNo >= 164 { // user defined format
 			if formatter := wb.Formats[fNo]; formatter != nil {
-				if (strings.Contains(formatter.str, "#") || strings.Contains(formatter.str, ".00")){
+				if strings.Contains(formatter.str, "#") || strings.Contains(formatter.str, ".00") {
 					//If format contains # or .00 then this is a number
-					return xf.Rk.String()					
-				}else{
+					return xf.Rk.String()
+				} else {
 					i, f, isFloat := xf.Rk.number()
 					if !isFloat {
 						f = float64(i)
 					}
 					t := timeFromExcelTime(f, wb.dateMode == 1)
-
 					return yymmdd.Format(t, formatter.str)
 				}
 			}
@@ -162,6 +161,10 @@ type NumberCol struct {
 }
 
 func (c *NumberCol) String(wb *WorkBook) []string {
+	if fNo := wb.Xfs[c.Index].formatNo(); fNo != 0 {
+		t := timeFromExcelTime(c.Float, wb.dateMode == 1)
+		return []string{yymmdd.Format(t, wb.Formats[fNo].str)}
+	}
 	return []string{strconv.FormatFloat(c.Float, 'f', -1, 64)}
 }
 

workbook.go

@@ -6,6 +6,7 @@ import (
 	"io"
 	"os"
 	"unicode/utf16"
+
 	"golang.org/x/text/encoding/charmap"
 )
 
@@ -162,9 +163,9 @@ func (wb *WorkBook) parseBof(buf io.ReadSeeker, b *bof, pre *bof, offset_pre int
 	return
 }
 func decodeWindows1251(enc []byte) string {
-    dec := charmap.Windows1251.NewDecoder()
-    out, _ := dec.Bytes(enc)
-    return string(out)
+	dec := charmap.Windows1251.NewDecoder()
+	out, _ := dec.Bytes(enc)
+	return string(out)
 }
 func (w *WorkBook) get_string(buf io.ReadSeeker, size uint16) (res string, err error) {
 	if w.Is5ver {