diff --git a/README.md b/README.md
index e2609fb..81dd8bc 100644
--- a/README.md
+++ b/README.md
@@ -49,13 +49,13 @@ for more example I invite to tests data: [click here and check `Renderer` folder
 | Navigation | [EndRowCell](./src/cell/EndRowCell.ts) | 2 | `#! END_ROW` | Go to the beginning of next row |  |
 | Worksheet<br/>Navigation<br/>Loop | [FinishCell](./src/cell/FinishCell.ts) | 7 | `#! FINISH conditionPath` | Finish rendering for current worksheet and: <br/> 1) go to next worksheet if `conditionPath===true`<br/> 2) repeat this template worksheet again (`conditionPath === false`) - looping through worksheets <br/> 3) finished whole rendering when this worksheet is the last one.   | **Examples:**<br/> `#! FINISHED ` or `#! FINISHED itemFromLoop.__iterated` |
 | Worksheet | [WsNameCell](./src/cell/WsNameCell.ts) | 13 | `#! WS_NAME pathToVariable` | Set worksheet's name.  | **Examples:** <br/> `#! WS_NAME worksheetName` <br/> `#! WS_NAME item.title` <br/> `#! WS_NAME translatedNames.0` |
-| Loop | **TODO: describe it!** [DumpColsCell](./src/cell/DumpColsCell.ts) | | | | |
+| Loop | [DumpColsCell](./src/cell/DumpColsCell.ts) | 10 | `#! DUMP_COLS pathToArray` | Useful for writing through multiple columns. It put each value of array to next column. | [Example](./tests/integration/data/Renderer011-DumpCols/) |
 | Loop | **TODO: tests done: simple, stripped; tests todo: nested, with formula, special fields, through worksheets,** [ForEachCell](./src/cell/ForEachCell.ts) | 6 | #! FOR_EACH item items | Begin the loop named `item`, set the first element of `items` into `item` and go to the beginning of next line.| Connected to: `ContinueCell`, `EndLoopCell`, `DeleteCell`, `FinishedCell`, `SumCell`, `AverageCell`. |
 | Loop | [ContinueCell](./src/cell/ContinueCell.ts) | 9 | `#! CONTINUE item` | Iterate to next element of loop named `item` (check `ForEachCell` for more information) and navigate to the beginning of new line. | |
 | Loop | [EndLoopCell](./src/cell/EndLoopCell.ts) | 8 | `#! END_LOOP item` | Mark cell when the loop `item` finished. | |
 | Aggregation| [SumCell](./src/cell/SumCell.ts) | 11 | `#! SUM item` | Write sum formulae for current column and the `item`'s rows.  | [Example](./tests/integration/data/Renderer007-ForEach-Sum/) |
 | Aggregation | [AverageCell](./src/cell/AverageCell.ts) | 12 | `#! AVERAGE item` | Write average formulae for current column and the `item`'s rows.  | [Example](./tests/integration/data/Renderer009-ForEach-Average/) |
-| View Model | **TODO: test - nested loop** [DeleteCell](./src/cell/DeleteCell.ts) | 14 | `#! DELETE pathToVariable` | Delete variable, useful for nested loops.|  [Example](./tests/integration/data/Renderer009-ForEach-Average/)  |
+| View Model | [DeleteCell](./src/cell/DeleteCell.ts) | 14 | `#! DELETE pathToVariable` | Delete variable, useful for nested loops.|  [Example](./tests/integration/data/Renderer009-ForEach-Average/)  |
 
 
 ## Commands [PREVIOUS VERSION]:
diff --git a/tests/integration/data/Renderer011-DumpCols/expected.xlsx b/tests/integration/data/Renderer011-DumpCols/expected.xlsx
new file mode 100644
index 0000000..2ccfc38
Binary files /dev/null and b/tests/integration/data/Renderer011-DumpCols/expected.xlsx differ
diff --git a/tests/integration/data/Renderer011-DumpCols/template.xlsx b/tests/integration/data/Renderer011-DumpCols/template.xlsx
new file mode 100644
index 0000000..0abba99
Binary files /dev/null and b/tests/integration/data/Renderer011-DumpCols/template.xlsx differ
diff --git a/tests/integration/data/Renderer011-DumpCols/viewModel.json b/tests/integration/data/Renderer011-DumpCols/viewModel.json
new file mode 100644
index 0000000..b9bf64f
--- /dev/null
+++ b/tests/integration/data/Renderer011-DumpCols/viewModel.json
@@ -0,0 +1,103 @@
+{
+    "days": [
+        "01/04/2020",
+        "02/04/2020",
+        "03/04/2020",
+        "04/04/2020",
+        "05/04/2020",
+        "06/04/2020",
+        "07/04/2020"
+    ],
+    "stats": [
+        {
+            "name": "p3r.io",
+            "views": [
+                128,
+                256,
+                512,
+                1024,
+                2048,
+                4096,
+                8182
+            ],
+            "unique": [
+                16,
+                32,
+                64,
+                128,
+                256,
+                512,
+                1024
+            ],
+            "actions": [
+                2,
+                4,
+                8,
+                16,
+                32,
+                64,
+                128
+            ]
+        },
+        {
+            "name": "siemienik.pl",
+            "views": [
+                28,
+                56,
+                112,
+                124,
+                148,
+                196,
+                182
+            ],
+            "unique": [
+                6,
+                2,
+                4,
+                28,
+                56,
+                12,
+                24
+            ],
+            "actions": [
+                1,
+                2,
+                2,
+                6,
+                2,
+                4,
+                28
+            ]
+        },
+        {
+            "name": "github.com/siemienik",
+            "views": [
+                1128,
+                1256,
+                1512,
+                11024,
+                12048,
+                14096,
+                18182
+            ],
+            "unique": [
+                116,
+                132,
+                164,
+                1128,
+                1256,
+                1512,
+                11024
+            ],
+            "actions": [
+                12,
+                14,
+                18,
+                116,
+                132,
+                164,
+                1128
+            ]
+        }
+    ]
+}
\ No newline at end of file