diff --git a/files/src/main/docs/diagrams/src/Files.puml b/files/src/main/docs/diagrams/src/Files.puml
new file mode 100644
index 0000000..2df3767
--- /dev/null
+++ b/files/src/main/docs/diagrams/src/Files.puml
@@ -0,0 +1,15 @@
+@startuml Files
+title Files class diagram
+class File {
+    String name
+    byte size
+}
+enum Format{
+    DOCUMENT
+    IMAGE
+    AUDIO
+    VIDEO
+    OTHER
+}
+
+@enduml
\ No newline at end of file
diff --git a/files/src/main/doc/j110-lab2.pdf b/files/src/main/docs/j110-lab2.pdf
similarity index 100%
rename from files/src/main/doc/j110-lab2.pdf
rename to files/src/main/docs/j110-lab2.pdf
diff --git a/files/src/main/java/ru/molokoin/Extension.java b/files/src/main/java/ru/molokoin/Extension.java
new file mode 100644
index 0000000..9e4b683
--- /dev/null
+++ b/files/src/main/java/ru/molokoin/Extension.java
@@ -0,0 +1,8 @@
+public enum Extension {
+    DOCUMENT,
+    IMAGE,
+    AUDIO,
+    VIDEO,
+    OTHER;
+    
+}
diff --git a/files/src/main/java/ru/molokoin/File.java b/files/src/main/java/ru/molokoin/File.java
new file mode 100644
index 0000000..8cc0d3c
--- /dev/null
+++ b/files/src/main/java/ru/molokoin/File.java
@@ -0,0 +1,9 @@
+import annota
+Format (name=noname; size=0; extension=Extension.OTHER)
+public class File {
+    private String name;
+    private byte size;
+
+    //читаем днные аннотации
+
+}
diff --git a/files/src/main/java/ru/molokoin/Format.java b/files/src/main/java/ru/molokoin/Format.java
new file mode 100644
index 0000000..daf6f36
--- /dev/null
+++ b/files/src/main/java/ru/molokoin/Format.java
@@ -0,0 +1,8 @@
+@Inherited
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Format {
+    String name() default "noname";
+    byte size() default "0";
+    Extension extension () default Extension.OTHER;
+}
diff --git a/files/src/main/java/ru/molokoin/files.java b/files/src/main/java/ru/molokoin/files.java
deleted file mode 100644
index 0828fe6..0000000
--- a/files/src/main/java/ru/molokoin/files.java
+++ /dev/null
@@ -1,3 +0,0 @@
-public class files {
-    
-}