diff --git a/package.json b/package.json
index 76e9b89..e34fe8f 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
         "build": "tsc",
         "format": "prettier --write \"src/**/*.ts\"",
         "lint": "tslint -p tsconfig.json",
+        "lint:fix": "tslint -p tsconfig.json --fix",
         "test": "mocha -r ts-node/register tests/**/*.test.ts",
         "coverageRaport": "nyc -r lcov -e .ts -x \"*.test.ts\" mocha -r ts-node/register tests/**/*.test.ts && nyc report",
         "prepublishOnly": "npm test && npm run lint && npm run build",
diff --git a/src/CellTemplateDebugPool.ts b/src/CellTemplateDebugPool.ts
index 5cee4f6..fc9e3b9 100644
--- a/src/CellTemplateDebugPool.ts
+++ b/src/CellTemplateDebugPool.ts
@@ -1,7 +1,7 @@
 import { CellTemplatePool } from './CellTemplatePool';
 import { Cell } from 'exceljs';
 import { BaseCell } from './cell/BaseCell';
-
+/* tslint:disable:no-console */
 export class CellTemplateDebugPool extends CellTemplatePool {
     /**
      * do normal match and log in console result.
diff --git a/src/cell/AverageCell.ts b/src/cell/AverageCell.ts
index 3512512..867858e 100644
--- a/src/cell/AverageCell.ts
+++ b/src/cell/AverageCell.ts
@@ -1,8 +1,16 @@
 import { BaseCell } from './BaseCell';
 import { Scope } from '../Scope';
 import { Cell, CellFormulaValue, ValueType } from 'exceljs';
-
+/* tslint:disable:variable-name */
 export class AverageCell extends BaseCell {
+
+    public static match(cell: Cell): boolean {
+        return cell && cell.type === ValueType.String && typeof cell.value === 'string' && cell.value.substring(0, 10) === '#! AVERAGE';
+    }
+
+    protected static getTargetParam(scope: Scope): string {
+        return scope.getCurrentTemplateValue()?.toString().split(' ')[2] || '';
+    }
     public apply(scope: Scope): AverageCell {
         super.apply(scope);
 
@@ -11,8 +19,8 @@ export class AverageCell extends BaseCell {
         const __endOutput = scope.vm[target] && scope.vm[target].__endOutput;
 
         if (__startOutput && __endOutput) {
-            const start = scope.output.worksheets[scope.outputCell.ws].getCell(__startOutput, scope.outputCell.c).address; //todo refactoring
-            const end = scope.output.worksheets[scope.outputCell.ws].getCell(__endOutput, scope.outputCell.c).address; //todo refactoring
+            const start = scope.output.worksheets[scope.outputCell.ws].getCell(__startOutput, scope.outputCell.c).address; // todo refactoring
+            const end = scope.output.worksheets[scope.outputCell.ws].getCell(__endOutput, scope.outputCell.c).address; // todo refactoring
 
             scope.setCurrentOutputValue({ formula: `average(${start}:${end})` } as CellFormulaValue);
         }
@@ -21,12 +29,4 @@ export class AverageCell extends BaseCell {
 
         return this;
     }
-
-    protected static getTargetParam(scope: Scope): string {
-        return scope.getCurrentTemplateValue()?.toString().split(' ')[2] || '';
-    }
-
-    public static match(cell: Cell): boolean {
-        return cell && cell.type === ValueType.String && typeof cell.value === 'string' && cell.value.substring(0, 10) === '#! AVERAGE';
-    }
 }
\ No newline at end of file
diff --git a/src/cell/DeleteCell.ts b/src/cell/DeleteCell.ts
index cdb228d..963c886 100644
--- a/src/cell/DeleteCell.ts
+++ b/src/cell/DeleteCell.ts
@@ -10,9 +10,9 @@ export class DeleteCell extends BaseCell {
     public apply(scope: Scope): DeleteCell {
         super.apply(scope);
 
-        const target = scope.getCurrentTemplateValue()?.toString().split(' ')[2]; //todo make some function for scope.getCurrentTemplateValue()?.toString().split(' ')  ;
+        const target = scope.getCurrentTemplateValue()?.toString().split(' ')[2]; // todo make some function for scope.getCurrentTemplateValue()?.toString().split(' ')  ;
 
-        if (target == undefined) return this; //it's ok here
+        if (target === undefined) { return this; } // it's ok here
 
         scope.vm[target] = undefined;
 
diff --git a/src/cell/DumpColsCell.ts b/src/cell/DumpColsCell.ts
index a1a8167..97f1917 100644
--- a/src/cell/DumpColsCell.ts
+++ b/src/cell/DumpColsCell.ts
@@ -3,7 +3,7 @@ import { Cell, ValueType } from 'exceljs';
 import { Scope } from '../Scope';
 
 export class DumpColsCell extends BaseCell {
-    static match(cell: Cell): boolean {
+    public static match(cell: Cell): boolean {
         return cell && cell.type === ValueType.String && typeof cell.value === 'string' && cell.value.substring(0, 12) === '#! DUMP_COLS';
     }
 
diff --git a/src/cell/EndLoopCell.ts b/src/cell/EndLoopCell.ts
index 0088a68..5efad25 100644
--- a/src/cell/EndLoopCell.ts
+++ b/src/cell/EndLoopCell.ts
@@ -2,6 +2,7 @@ import { BaseCell } from './BaseCell';
 import { Cell, ValueType } from 'exceljs';
 import { Scope } from '../Scope';
 
+/* tslint:disable:variable-name */
 export class EndLoopCell extends BaseCell {
     public static match(cell: Cell): boolean {
         return (
diff --git a/src/cell/FinishCell.ts b/src/cell/FinishCell.ts
index 5422046..9a91d8c 100644
--- a/src/cell/FinishCell.ts
+++ b/src/cell/FinishCell.ts
@@ -2,6 +2,7 @@ import { BaseCell } from './BaseCell';
 import { Cell, ValueType } from 'exceljs';
 import { Scope } from '../Scope';
 
+/* tslint:disable:variable-name */
 export class FinishCell extends BaseCell {
     public static match(cell: Cell): boolean {
         return (
@@ -18,12 +19,8 @@ export class FinishCell extends BaseCell {
      * * condition's path follow to undefined
      * * condition is true
      * In other way, the same template sheet should render next output sheet - as long as condition is false
-     *
-     * @param {Scope} scope
-     * @returns {boolean}
-     * @protected
      */
-    private static _getCondition(scope: Scope): boolean {
+    protected static getCondition(scope: Scope): boolean {
         const args =
             scope
                 .getCurrentTemplateValue()
@@ -44,7 +41,7 @@ export class FinishCell extends BaseCell {
 
         let wst = scope.template.worksheets[scope.templateCell.ws];
 
-        if (FinishCell._getCondition(scope)) {
+        if (FinishCell.getCondition(scope)) {
             // todo refactoring scope.iterateWorksheet
 
             const wstNext = scope.templateCell.ws + 1;
diff --git a/src/cell/ForEachCell.ts b/src/cell/ForEachCell.ts
index 846da6f..bb0be56 100644
--- a/src/cell/ForEachCell.ts
+++ b/src/cell/ForEachCell.ts
@@ -2,6 +2,7 @@ import { BaseCell } from './BaseCell';
 import { Scope } from '../Scope';
 import { Cell, ValueType } from 'exceljs';
 
+/* tslint:disable:variable-name */
 /**
  * Pattern: `#! FOR_EACH [TARGET] [SOURCE]`
  * Iterate through `vm[SOURCE]` and store current item in readonly `vm[TARGET]`.
@@ -25,16 +26,12 @@ export class ForEachCell extends BaseCell {
         return scope.getCurrentTemplateValue()?.toString().split(' ')[2] || '';
     }
 
-    protected getSourceParam(scope: Scope): string {
-        return scope.getCurrentTemplateValue()?.toString().split(' ')[3] || '';
-    }
-
 
     public apply(scope: Scope): ForEachCell {
         const target = ForEachCell.getTargetParam(scope);
         const __from = this.getSourceParam(scope);
 
-        //todo refactoring
+        // todo refactoring
         const __index = (scope.vm[target] && scope.vm[target].__index || 0) + 1;
         if (__index === 1) {
             super.apply(scope);
@@ -65,7 +62,7 @@ export class ForEachCell extends BaseCell {
             __insetRows = false;
             if (!scope.isFrozen()) {
                 for (let i = __end.r; i > __start.r; i--) {
-                    scope.output.worksheets[scope.outputCell.ws].spliceRows( //todo refactoring
+                    scope.output.worksheets[scope.outputCell.ws].spliceRows( // todo refactoring
                         scope.outputCell.r + 1,
                         0,
                         [],
@@ -95,4 +92,8 @@ export class ForEachCell extends BaseCell {
         
         return this;
     }
+
+    protected getSourceParam(scope: Scope): string {
+        return scope.getCurrentTemplateValue()?.toString().split(' ')[3] || '';
+    }
 }
diff --git a/src/cell/FormulaCell.ts b/src/cell/FormulaCell.ts
index e7026a2..8f3378f 100644
--- a/src/cell/FormulaCell.ts
+++ b/src/cell/FormulaCell.ts
@@ -1,22 +1,12 @@
-import { BaseCell } from './BaseCell';
-import { Cell, CellFormulaValue, ValueType } from 'exceljs';
-import { Scope } from '../Scope';
+import {BaseCell} from './BaseCell';
+import {Cell, CellFormulaValue, ValueType} from 'exceljs';
+import {Scope} from '../Scope';
 
 export class FormulaCell extends BaseCell {
-    /**
-     * @inheritDoc
-     * @param {Cell} cell
-     * @returns {boolean}
-     */
     public static match(cell: Cell): boolean {
         return cell && cell.type === ValueType.Formula;
     }
 
-    /**
-     * @inheritDoc
-     * @param {Scope} scope
-     * @returns {FormulaCell}
-     */
     public apply(scope: Scope): FormulaCell {
         super.apply(scope);
 
@@ -26,16 +16,20 @@ export class FormulaCell extends BaseCell {
         const value = scope.getCurrentTemplateValue() as CellFormulaValue;
         let formula = value.formula;
 
-        //todo extract method match addresses
-        let matches;
-        let addresses = [];
-        while (matches = regex.exec(formula)) {
+        // todo extract method match addresses
+        const addresses = [];
+        while (true) {
+            const matches = regex.exec(formula);
+            if (matches === null) {
+                break;
+            }
+            
             addresses.push({index: matches.index, col: matches[1], row: +matches[2], len: matches[0].length})
         }
         addresses.reverse();
 
-        //todo extract method getShiftedFormula
-        let formulaChars = Array.from(formula);
+        // todo extract method getShiftedFormula
+        const formulaChars = Array.from(formula);
         addresses.forEach(a => formulaChars.splice(a.index, a.len, `${a.col}${a.row + shift}`));
         formula = formulaChars.join('');
 
diff --git a/src/cell/HyperlinkCell.ts b/src/cell/HyperlinkCell.ts
index b14d6d2..b9f07bc 100644
--- a/src/cell/HyperlinkCell.ts
+++ b/src/cell/HyperlinkCell.ts
@@ -23,7 +23,6 @@ export class HyperlinkCell extends BaseCell {
         const url = HyperlinkCell.getUrlParam(scope).split('.').reduce((p, c) => p[c] || {}, scope.vm);
         if (typeof url === 'string') {
             const label = HyperlinkCell.getLabelParam(scope).split('.').reduce((p, c) => p[c] || {}, scope.vm) || url;
-            console.log(label);
             scope.setCurrentOutputValue({ text: label, hyperlink: url });
         }
 
diff --git a/src/cell/SumCell.ts b/src/cell/SumCell.ts
index 80b4d1d..3d93db2 100644
--- a/src/cell/SumCell.ts
+++ b/src/cell/SumCell.ts
@@ -2,6 +2,7 @@ import { BaseCell } from './BaseCell';
 import { Scope } from '../Scope';
 import { Cell, CellFormulaValue, ValueType } from 'exceljs';
 
+/* tslint:disable:variable-name */
 export class SumCell extends BaseCell {
     public static match(cell: Cell): boolean {
         return cell && cell.type === ValueType.String && typeof cell.value === 'string' && cell.value.substring(0, 6) === '#! SUM';
@@ -19,8 +20,8 @@ export class SumCell extends BaseCell {
         const __endOutput = scope.vm[target] && scope.vm[target].__endOutput;
 
         if (__startOutput && __endOutput) {
-            const start = scope.output.worksheets[scope.outputCell.ws].getCell(__startOutput, scope.outputCell.c).address; //todo refactoring
-            const end = scope.output.worksheets[scope.outputCell.ws].getCell(__endOutput, scope.outputCell.c).address; //todo refactoring
+            const start = scope.output.worksheets[scope.outputCell.ws].getCell(__startOutput, scope.outputCell.c).address; // todo refactoring
+            const end = scope.output.worksheets[scope.outputCell.ws].getCell(__endOutput, scope.outputCell.c).address; // todo refactoring
 
             scope.setCurrentOutputValue({ formula: `sum(${start}:${end})` } as CellFormulaValue);
         }
diff --git a/src/cell/VariableCell.ts b/src/cell/VariableCell.ts
index dff3f72..3f4ecef 100644
--- a/src/cell/VariableCell.ts
+++ b/src/cell/VariableCell.ts
@@ -25,6 +25,7 @@ export class VariableCell extends BaseCell {
         const value = path.reduce((p, c) => (typeof p === 'object' ? p[c] : p), scope.vm);
         if (value === undefined) {
             // todo do it better (use logger or somethink like that)
+            // tslint:disable-next-line:no-console
             console.warn(
                 `WARN: ${path} is undefined for output: ${scope.outputCell} when template is:${scope.templateCell}`,
             );
diff --git a/src/example.ts b/src/example.ts
index 48ccadb..64e9431 100644
--- a/src/example.ts
+++ b/src/example.ts
@@ -3,6 +3,7 @@ import { CellTemplateDebugPool } from './CellTemplateDebugPool';
 import { CellTemplatePool } from './CellTemplatePool';
 import { Workbook } from 'exceljs';
 
+// tslint:disable:comment-format 
 //*
 const debug = true;
 /*/