diff --git a/src/AddIn/Functions.cs b/src/AddIn/Functions.cs
index 618d17d..867e246 100644
--- a/src/AddIn/Functions.cs
+++ b/src/AddIn/Functions.cs
@@ -52,5 +52,18 @@ namespace RehauSku
                     return null;
             }
         }
+
+        [ExcelFunction(Description = "Получение корректного артикула из строки")]
+        public static object GETRAUSKU([ExcelArgument(Name = "\"Строка\"", Description = "строка, содержащая актикул")] string line)
+        {
+            RauSku rausku;
+
+            if (RauSku.TryParse(line, out rausku))
+            {
+                return rausku.ToString();
+            }
+
+            else return ExcelError.ExcelErrorNA;
+        }
     }
 }
\ No newline at end of file
diff --git a/src/AddIn/RehauSku.cs b/src/AddIn/RehauSku.cs
new file mode 100644
index 0000000..40e5d30
--- /dev/null
+++ b/src/AddIn/RehauSku.cs
@@ -0,0 +1,67 @@
+using System.Text.RegularExpressions;
+
+namespace RehauSku
+{
+    internal class RauSku
+    {
+        public string Sku { get; private set; }
+        public string Variant { get; private set; }
+
+        public RauSku(string sku, string variant)
+        {
+            Sku = sku;
+            Variant = variant;
+        }
+
+        public static bool TryParse(string line, out RauSku rehauSku)
+        {
+            Match match;
+            match = Regex.Match(line, @"\b[1]\d{6}[1]\d{3}\b");
+            if (match.Success)
+            {
+                string sku = match.Value.Substring(1, 6);
+                string variant = match.Value.Substring(8, 3);
+                rehauSku = new RauSku(sku, variant);
+                return true;
+            }
+
+            match = Regex.Match(line, @"\b\d{6}\D\d{3}\b");
+            if (match.Success)
+            {
+                string sku = match.Value.Substring(0, 6);
+                string variant = match.Value.Substring(7, 3);
+                rehauSku = new RauSku(sku, variant);
+                return true;
+            }
+
+            match = Regex.Match(line, @"\b\d{9}\b");
+            if (match.Success)
+            {
+                string sku = match.Value.Substring(0, 6);
+                string variant = match.Value.Substring(6, 3);
+                rehauSku = new RauSku(sku, variant);
+                return true;
+            }
+
+            match = Regex.Match(line, @"\b\d{6}\b");
+            if (match.Success)
+            {
+                string sku = match.Value.Substring(0, 6);
+                string variant = "001";
+                rehauSku = new RauSku(sku, variant);
+                return true;
+            }
+
+            else
+            {
+                rehauSku = null;
+                return false; 
+            }
+        }
+
+        public override string ToString()
+        {
+            return $"1{Sku}1{Variant}";
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Properties/AssemblyInfo.cs b/src/Properties/AssemblyInfo.cs
index d254dfc..6a5c3a2 100644
--- a/src/Properties/AssemblyInfo.cs
+++ b/src/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.4.3")]
-[assembly: AssemblyFileVersion("1.0.4.3")]
+[assembly: AssemblyVersion("1.0.5.0")]
+[assembly: AssemblyFileVersion("1.0.5.0")]
diff --git a/src/RehauSku.Assist.csproj b/src/RehauSku.Assist.csproj
index 8a2990b..16ae27e 100644
--- a/src/RehauSku.Assist.csproj
+++ b/src/RehauSku.Assist.csproj
@@ -116,6 +116,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AddIn\EventsUtil.cs" />
+    <Compile Include="AddIn\RehauSku.cs" />
     <Compile Include="Interface\AbstractBar.cs" />
     <Compile Include="Interface\Dialog.cs" />
     <Compile Include="AddIn\RegistryUtil.cs" />