diff --git a/formats/dat/dat.go b/formats/dat/dat.go
index 5b62180..5b4c224 100644
--- a/formats/dat/dat.go
+++ b/formats/dat/dat.go
@@ -7,7 +7,7 @@ import (
 	"github.com/FooSoft/lazarus/math"
 )
 
-type DatPalette struct {
+type Palette struct {
 	Colors [256]math.Color3b
 }
 
@@ -17,13 +17,13 @@ type color struct {
 	R byte
 }
 
-func NewFromReader(reader io.Reader) (*DatPalette, error) {
+func NewFromReader(reader io.Reader) (*Palette, error) {
 	var colors [256]color
 	if err := binary.Read(reader, binary.LittleEndian, &colors); err != nil {
 		return nil, err
 	}
 
-	palette := new(DatPalette)
+	palette := new(Palette)
 	for i, color := range colors {
 		palette.Colors[i] = math.Color3b{R: color.R, G: color.G, B: color.B}
 	}
@@ -31,8 +31,8 @@ func NewFromReader(reader io.Reader) (*DatPalette, error) {
 	return palette, nil
 }
 
-func NewFromGrayscale() *DatPalette {
-	palette := new(DatPalette)
+func NewFromGrayscale() *Palette {
+	palette := new(Palette)
 	for i := 0; i < 256; i++ {
 		value := uint8(i)
 		palette.Colors[i] = math.Color3b{R: value, G: value, B: value}
diff --git a/formats/dc6/dc6.go b/formats/dc6/dc6.go
index 59a5d1b..a983c43 100644
--- a/formats/dc6/dc6.go
+++ b/formats/dc6/dc6.go
@@ -38,12 +38,12 @@ type Frame struct {
 	Data   []byte
 }
 
-type Dc6Animation struct {
+type Animation struct {
 	Directions []Direction
 }
 
-func NewFromReader(reader io.ReadSeeker) (*Dc6Animation, error) {
-	sprite := new(Dc6Animation)
+func NewFromReader(reader io.ReadSeeker) (*Animation, error) {
+	sprite := new(Animation)
 
 	var fileHead fileHeader
 	if err := binary.Read(reader, binary.LittleEndian, &fileHead); err != nil {
diff --git a/formats/mpq/mpq.go b/formats/mpq/mpq.go
index 56edac4..bac295d 100644
--- a/formats/mpq/mpq.go
+++ b/formats/mpq/mpq.go
@@ -20,23 +20,16 @@ import (
 	"unsafe"
 )
 
-type File interface {
-	Read(data []byte) (int, error)
-	Seek(offset int64, whence int) (int64, error)
-	Close() error
+type Archive struct {
+	handle unsafe.Pointer
+	paths  map[string]string
 }
 
-type MpqArchive interface {
-	OpenFile(path string) (File, error)
-	GetPaths() []string
-	Close() error
-}
-
-func NewFromFile(path string) (MpqArchive, error) {
+func NewFromFile(path string) (*Archive, error) {
 	cs := C.CString(path)
 	defer C.free(unsafe.Pointer(cs))
 
-	a := new(archive)
+	a := new(Archive)
 	if result := C.SFileOpenArchive(cs, 0, 0, (*C.HANDLE)(&a.handle)); result == 0 {
 		return nil, fmt.Errorf("failed to open archive (%d)", getLastError())
 	}
@@ -49,58 +42,7 @@ func NewFromFile(path string) (MpqArchive, error) {
 	return a, nil
 }
 
-type file struct {
-	handle unsafe.Pointer
-}
-
-func (f *file) Read(data []byte) (int, error) {
-	var bytesRead int
-	if result := C.SFileReadFile(C.HANDLE(f.handle), unsafe.Pointer(&data[0]), C.ulong(len(data)), (*C.ulong)(unsafe.Pointer(&bytesRead)), nil); result == 0 {
-		lastError := getLastError()
-		if lastError == C.ERROR_HANDLE_EOF {
-			return bytesRead, io.EOF
-		}
-
-		return 0, fmt.Errorf("failed to read file (%d)", lastError)
-	}
-
-	return bytesRead, nil
-}
-
-func (f *file) Seek(offset int64, whence int) (int64, error) {
-	var method uint
-	switch whence {
-	case io.SeekStart:
-		method = C.FILE_BEGIN
-	case io.SeekCurrent:
-		method = C.FILE_CURRENT
-	case io.SeekEnd:
-		method = C.FILE_END
-	}
-
-	result := C.SFileSetFilePointer(C.HANDLE(f.handle), C.long(offset), nil, C.ulong(method))
-	if result == C.SFILE_INVALID_SIZE {
-		return 0, fmt.Errorf("failed to set file pointer (%d)", getLastError())
-	}
-
-	return int64(result), nil
-}
-
-func (f *file) Close() error {
-	if result := C.SFileCloseFile(C.HANDLE(f.handle)); result == 0 {
-		return fmt.Errorf("failed to close file (%d)", getLastError())
-	}
-
-	f.handle = nil
-	return nil
-}
-
-type archive struct {
-	handle unsafe.Pointer
-	paths  map[string]string
-}
-
-func (a *archive) Close() error {
+func (a *Archive) Close() error {
 	if result := C.SFileCloseArchive(C.HANDLE(a.handle)); result == 0 {
 		return fmt.Errorf("failed to close archive (%d)", getLastError())
 	}
@@ -110,7 +52,7 @@ func (a *archive) Close() error {
 	return nil
 }
 
-func (a *archive) OpenFile(path string) (File, error) {
+func (a *Archive) OpenFile(path string) (*File, error) {
 	if pathInt, ok := a.paths[path]; ok {
 		path = pathInt
 	}
@@ -118,7 +60,7 @@ func (a *archive) OpenFile(path string) (File, error) {
 	cs := C.CString(path)
 	defer C.free(unsafe.Pointer(cs))
 
-	file := new(file)
+	file := new(File)
 	if result := C.SFileOpenFileEx(C.HANDLE(a.handle), cs, 0, (*C.HANDLE)(&file.handle)); result == 0 {
 		return nil, fmt.Errorf("failed to open file (%d)", getLastError())
 	}
@@ -126,7 +68,7 @@ func (a *archive) OpenFile(path string) (File, error) {
 	return file, nil
 }
 
-func (a *archive) GetPaths() []string {
+func (a *Archive) GetPaths() []string {
 	var extPaths []string
 	for extPath := range a.paths {
 		extPaths = append(extPaths, extPath)
@@ -135,7 +77,7 @@ func (a *archive) GetPaths() []string {
 	return extPaths
 }
 
-func (a *archive) buildPathMap() error {
+func (a *Archive) buildPathMap() error {
 	f, err := a.OpenFile("(listfile)")
 	if err != nil {
 		return err
@@ -161,6 +103,52 @@ func (a *archive) buildPathMap() error {
 	return nil
 }
 
+type File struct {
+	handle unsafe.Pointer
+}
+
+func (f *File) Read(data []byte) (int, error) {
+	var bytesRead int
+	if result := C.SFileReadFile(C.HANDLE(f.handle), unsafe.Pointer(&data[0]), C.ulong(len(data)), (*C.ulong)(unsafe.Pointer(&bytesRead)), nil); result == 0 {
+		lastError := getLastError()
+		if lastError == C.ERROR_HANDLE_EOF {
+			return bytesRead, io.EOF
+		}
+
+		return 0, fmt.Errorf("failed to read file (%d)", lastError)
+	}
+
+	return bytesRead, nil
+}
+
+func (f *File) Seek(offset int64, whence int) (int64, error) {
+	var method uint
+	switch whence {
+	case io.SeekStart:
+		method = C.FILE_BEGIN
+	case io.SeekCurrent:
+		method = C.FILE_CURRENT
+	case io.SeekEnd:
+		method = C.FILE_END
+	}
+
+	result := C.SFileSetFilePointer(C.HANDLE(f.handle), C.long(offset), nil, C.ulong(method))
+	if result == C.SFILE_INVALID_SIZE {
+		return 0, fmt.Errorf("failed to set file pointer (%d)", getLastError())
+	}
+
+	return int64(result), nil
+}
+
+func (f *File) Close() error {
+	if result := C.SFileCloseFile(C.HANDLE(f.handle)); result == 0 {
+		return fmt.Errorf("failed to close file (%d)", getLastError())
+	}
+
+	f.handle = nil
+	return nil
+}
+
 func sanitizePath(path string) string {
 	return strings.ToLower(strings.Replace(path, "\\", string(os.PathSeparator), -1))
 }
diff --git a/platform/file.go b/platform/file.go
index 47090c9..da34b48 100644
--- a/platform/file.go
+++ b/platform/file.go
@@ -3,7 +3,7 @@ package platform
 import "github.com/FooSoft/lazarus/formats/mpq"
 
 var fileState struct {
-	mountPoints map[string]mpq.MpqArchive
+	mountPoints map[string]*mpq.Archive
 }
 
 type File struct {
diff --git a/tools/dc6/dc6.go b/tools/dc6/dc6.go
index 4bc70da..65ce9d7 100644
--- a/tools/dc6/dc6.go
+++ b/tools/dc6/dc6.go
@@ -14,7 +14,7 @@ import (
 	"github.com/FooSoft/lazarus/formats/dc6"
 )
 
-func loadPalette(path string) (*dat.DatPalette, error) {
+func loadPalette(path string) (*dat.Palette, error) {
 	fp, err := os.Open(path)
 	if err != nil {
 		return nil, err
@@ -23,7 +23,7 @@ func loadPalette(path string) (*dat.DatPalette, error) {
 	return dat.NewFromReader(fp)
 }
 
-func loadSprite(path string) (*dc6.Dc6Animation, error) {
+func loadSprite(path string) (*dc6.Animation, error) {
 	fp, err := os.Open(path)
 	if err != nil {
 		return nil, err
@@ -32,7 +32,7 @@ func loadSprite(path string) (*dc6.Dc6Animation, error) {
 	return dc6.NewFromReader(fp)
 }
 
-func extractSprite(spritePath string, palette *dat.DatPalette, targetDir string) error {
+func extractSprite(spritePath string, palette *dat.Palette, targetDir string) error {
 	sprite, err := loadSprite(spritePath)
 	if err != nil {
 		return err
diff --git a/tools/viewer/viewer.go b/tools/viewer/viewer.go
index 7400e06..6e75942 100644
--- a/tools/viewer/viewer.go
+++ b/tools/viewer/viewer.go
@@ -15,7 +15,7 @@ import (
 	"github.com/FooSoft/lazarus/platform/imgui"
 )
 
-func loadPalette(path string) (*dat.DatPalette, error) {
+func loadPalette(path string) (*dat.Palette, error) {
 	fp, err := os.Open(path)
 	if err != nil {
 		return nil, err
@@ -24,7 +24,7 @@ func loadPalette(path string) (*dat.DatPalette, error) {
 	return dat.NewFromReader(fp)
 }
 
-func loadAnimation(path string) (*dc6.Dc6Animation, error) {
+func loadAnimation(path string) (*dc6.Animation, error) {
 	fp, err := os.Open(path)
 	if err != nil {
 		return nil, err
@@ -34,8 +34,8 @@ func loadAnimation(path string) (*dc6.Dc6Animation, error) {
 }
 
 type scene struct {
-	animation *dc6.Dc6Animation
-	palette   *dat.DatPalette
+	animation *dc6.Animation
+	palette   *dat.Palette
 	texture   graphics.Texture
 
 	directionIndex int
@@ -145,7 +145,7 @@ func main() {
 		os.Exit(1)
 	}
 
-	var palette *dat.DatPalette
+	var palette *dat.Palette
 	if len(*palettePath) > 0 {
 		palette, err = loadPalette(*palettePath)
 		if err != nil {