diff --git a/cmd/main/main.go b/cmd/main/main.go
index 81b9576..198bb6a 100644
--- a/cmd/main/main.go
+++ b/cmd/main/main.go
@@ -5,6 +5,7 @@ import (
 	"flag"
 	"fmt"
 	"os"
+	"strings"
 
 	"github.com/fumiama/docxlib"
 )
@@ -150,7 +151,9 @@ func main() {
 
 	}
 	if *unm {
-		f, err := os.Create("unmarshal_" + *fileLocation)
+		i := strings.LastIndex(*fileLocation, "/")
+		name := (*fileLocation)[:i+1] + "unmarshal_" + (*fileLocation)[i+1:]
+		f, err := os.Create(name)
 		if err != nil {
 			panic(err)
 		}
@@ -174,7 +177,7 @@ func main() {
 				fmt.Printf("[%d] ", x)
 				for y, c := range r.TableCells {
 					if len(c.Paragraphs) > 0 && len(c.Paragraphs[0].Children) > 0 {
-						fmt.Printf("<%d> %s\t", y, c.Paragraphs[0].Children[0].(*docxlib.Run).Text.Text)
+						fmt.Printf("<%d> %v\t", y, &c.Paragraphs[0])
 					} else {
 						fmt.Print("\t")
 					}
diff --git a/empty.go b/empty.go
index afb2734..f21cff0 100644
--- a/empty.go
+++ b/empty.go
@@ -64,7 +64,7 @@ func newEmptyA4File() *Docx {
 			"word/webSettings.xml",
 			"[Content_Types].xml",
 		},
-		buf: bytes.NewBuffer(make([]byte, 0, 1024*1024*4)),
+		buf: bytes.NewBuffer(make([]byte, 0, 1024*1024)),
 	}
 	docx.Document.Body.file = docx
 	return docx
diff --git a/structdrawing.go b/structdrawing.go
index f29fcd3..74cac5a 100644
--- a/structdrawing.go
+++ b/structdrawing.go
@@ -128,31 +128,33 @@ func (r *WPInline) UnmarshalXML(d *xml.Decoder, start xml.StartElement) (err err
 			switch tt.Name.Local {
 			case "extent":
 				r.Extent = new(WPExtent)
-				r.Extent.CX, err = strconv.ParseInt(getAtt(tt.Attr, "cx"), 10, 64)
-				if err != nil {
-					return err
-				}
-				r.Extent.CY, err = strconv.ParseInt(getAtt(tt.Attr, "cy"), 10, 64)
-				if err != nil {
-					return err
+				for _, v := range tt.Attr {
+					switch v.Name.Local {
+					case "cx":
+						r.Extent.CX, err = strconv.ParseInt(v.Value, 10, 64)
+					case "cy":
+						r.Extent.CY, err = strconv.ParseInt(v.Value, 10, 64)
+					}
+					if err != nil {
+						return err
+					}
 				}
 			case "effectExtent":
 				r.EffectExtent = new(WPEffectExtent)
-				r.EffectExtent.L, err = strconv.ParseInt(getAtt(tt.Attr, "l"), 10, 64)
-				if err != nil {
-					return err
-				}
-				r.EffectExtent.T, err = strconv.ParseInt(getAtt(tt.Attr, "t"), 10, 64)
-				if err != nil {
-					return err
-				}
-				r.EffectExtent.R, err = strconv.ParseInt(getAtt(tt.Attr, "r"), 10, 64)
-				if err != nil {
-					return err
-				}
-				r.EffectExtent.B, err = strconv.ParseInt(getAtt(tt.Attr, "b"), 10, 64)
-				if err != nil {
-					return err
+				for _, v := range tt.Attr {
+					switch v.Name.Local {
+					case "l":
+						r.EffectExtent.L, err = strconv.ParseInt(v.Value, 10, 64)
+					case "t":
+						r.EffectExtent.T, err = strconv.ParseInt(v.Value, 10, 64)
+					case "r":
+						r.EffectExtent.R, err = strconv.ParseInt(v.Value, 10, 64)
+					case "b":
+						r.EffectExtent.B, err = strconv.ParseInt(v.Value, 10, 64)
+					}
+					if err != nil {
+						return err
+					}
 				}
 			case "docPr":
 				r.DocPr = new(WPDocPr)
@@ -321,7 +323,11 @@ func (w *WPCNvGraphicFramePr) UnmarshalXML(d *xml.Decoder, start xml.StartElemen
 				if err != nil && !strings.HasPrefix(err.Error(), "expected") {
 					return err
 				}
-				value.NoChangeAspect, err = strconv.Atoi(getAtt(tt.Attr, "noChangeAspect"))
+				v := getAtt(tt.Attr, "noChangeAspect")
+				if v == "" {
+					continue
+				}
+				value.NoChangeAspect, err = strconv.Atoi(v)
 				if err != nil {
 					return err
 				}
@@ -550,7 +556,11 @@ func (p *PicCNvPicPr) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error
 			switch tt.Name.Local {
 			case "picLocks":
 				var value APicLocks
-				value.NoChangeAspect, err = strconv.Atoi(getAtt(tt.Attr, "noChangeAspect"))
+				v := getAtt(tt.Attr, "noChangeAspect")
+				if v == "" {
+					continue
+				}
+				value.NoChangeAspect, err = strconv.Atoi(v)
 				if err != nil {
 					return err
 				}
@@ -655,7 +665,11 @@ func (a *ABlip) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
 			switch tt.Name.Local {
 			case "alphaModFix":
 				var value AAlphaModFix
-				value.Amount, err = strconv.Atoi(getAtt(tt.Attr, "amt"))
+				v := getAtt(tt.Attr, "amt")
+				if v == "" {
+					continue
+				}
+				value.Amount, err = strconv.Atoi(v)
 				if err != nil {
 					return err
 				}
@@ -779,22 +793,28 @@ func (a *AXfrm) UnmarshalXML(d *xml.Decoder, start xml.StartElement) (err error)
 		if tt, ok := t.(xml.StartElement); ok {
 			switch tt.Name.Local {
 			case "off":
-				a.Off.X, err = strconv.ParseInt(getAtt(tt.Attr, "x"), 10, 64)
-				if err != nil {
-					return err
-				}
-				a.Off.Y, err = strconv.ParseInt(getAtt(tt.Attr, "y"), 10, 64)
-				if err != nil {
-					return err
+				for _, v := range tt.Attr {
+					switch v.Name.Local {
+					case "x":
+						a.Off.X, err = strconv.ParseInt(v.Value, 10, 64)
+					case "y":
+						a.Off.Y, err = strconv.ParseInt(v.Value, 10, 64)
+					}
+					if err != nil {
+						return err
+					}
 				}
 			case "ext":
-				a.Ext.CX, err = strconv.ParseInt(getAtt(tt.Attr, "cx"), 10, 64)
-				if err != nil {
-					return err
-				}
-				a.Ext.CY, err = strconv.ParseInt(getAtt(tt.Attr, "cy"), 10, 64)
-				if err != nil {
-					return err
+				for _, v := range tt.Attr {
+					switch v.Name.Local {
+					case "cx":
+						a.Ext.CX, err = strconv.ParseInt(v.Value, 10, 64)
+					case "cy":
+						a.Ext.CY, err = strconv.ParseInt(v.Value, 10, 64)
+					}
+					if err != nil {
+						return err
+					}
 				}
 			default:
 				err = d.Skip() // skip unsupported tags
@@ -976,13 +996,16 @@ func (r *WPAnchor) UnmarshalXML(d *xml.Decoder, start xml.StartElement) (err err
 			switch tt.Name.Local {
 			case "simplePos":
 				r.SimplePosXY = new(WPSimplePos)
-				r.SimplePosXY.X, err = strconv.ParseInt(getAtt(tt.Attr, "x"), 10, 64)
-				if err != nil {
-					return err
-				}
-				r.SimplePosXY.Y, err = strconv.ParseInt(getAtt(tt.Attr, "y"), 10, 64)
-				if err != nil {
-					return err
+				for _, v := range tt.Attr {
+					switch v.Name.Local {
+					case "x":
+						r.SimplePosXY.X, err = strconv.ParseInt(v.Value, 10, 64)
+					case "y":
+						r.SimplePosXY.Y, err = strconv.ParseInt(v.Value, 10, 64)
+					}
+					if err != nil {
+						return err
+					}
 				}
 			case "positionH":
 				r.PositionH = new(WPPositionH)
diff --git a/structtable.go b/structtable.go
index 8060370..324f38c 100644
--- a/structtable.go
+++ b/structtable.go
@@ -484,14 +484,22 @@ func (r *WTableCellProperties) UnmarshalXML(d *xml.Decoder, start xml.StartEleme
 			switch tt.Name.Local {
 			case "tcW":
 				r.TableCellWidth = new(WTableCellWidth)
-				r.TableCellWidth.W, err = strconv.ParseInt(getAtt(tt.Attr, "w"), 10, 64)
+				v := getAtt(tt.Attr, "w")
+				if v == "" {
+					continue
+				}
+				r.TableCellWidth.W, err = strconv.ParseInt(v, 10, 64)
 				if err != nil {
 					return err
 				}
 				r.TableCellWidth.Type = getAtt(tt.Attr, "type")
 			case "gridSpan":
 				r.GridSpan = new(WGridSpan)
-				r.GridSpan.Val, err = strconv.Atoi(getAtt(tt.Attr, "val"))
+				v := getAtt(tt.Attr, "val")
+				if v == "" {
+					continue
+				}
+				r.GridSpan.Val, err = strconv.Atoi(v)
 				if err != nil {
 					return err
 				}
diff --git a/unpack.go b/unpack.go
index 5dcdcae..a8b50ef 100644
--- a/unpack.go
+++ b/unpack.go
@@ -43,7 +43,7 @@ func unpack(zipReader *zip.Reader) (docx *Docx, err error) {
 		// fill remaining files into tmpfslst
 		docx.tmpfslst = append(docx.tmpfslst, f.Name)
 	}
-	docx.buf = bytes.NewBuffer(make([]byte, 0, 1024*1024*4))
+	docx.buf = bytes.NewBuffer(make([]byte, 0, 1024*1024))
 	return
 }