diff --git a/src/Drivers/PhpSpreadsheetDriver.php b/src/Drivers/PhpSpreadsheetDriver.php
index cb1999f..94b6600 100644
--- a/src/Drivers/PhpSpreadsheetDriver.php
+++ b/src/Drivers/PhpSpreadsheetDriver.php
@@ -52,6 +52,7 @@ public function load(string $file, \AnourValar\Office\Format $format): self
     public function save(string $file, \AnourValar\Office\Format $format): void
     {
         $writer = \PhpOffice\PhpSpreadsheet\IOFactory::createWriter($this->spreadsheet, $this->getFormat($format));
+        $this->sheet->setSelectedCells('A1');
 
         if (method_exists($writer, 'writeAllSheets')) {
             $writer->writeAllSheets();
@@ -65,37 +66,30 @@ public function save(string $file, \AnourValar\Office\Format $format): void
      *
      * @param string $cell
      * @param mixed $value
+     * @param string $format
      * @return self
      */
-    public function setValue(string $cell, $value): self
+    public function setValue(string $cell, $value, string $format = null): self
     {
         if ($value instanceof \DateTimeInterface) {
 
             $this->sheet->setCellValue($cell, \PhpOffice\PhpSpreadsheet\Shared\Date::PHPToExcel($value));
-            $this->sheet->getStyle($cell)->getNumberFormat()->setFormatCode(static::DATE_FORMAT);
-
-        } elseif (is_string($value) && preg_match('#^\=[A-Z][A-Z\.\d]#', $value)) {
-
-            $this->sheet->setCellValue($cell, $value);
+            $this->setCellFormat($cell, ($format ?? static::DATE_FORMAT));
 
         } elseif (is_string($value) || is_null($value)) {
 
-            $this->sheet->getCell($cell)->setValueExplicit((string) $value, \PhpOffice\PhpSpreadsheet\Cell\DataType::TYPE_STRING);
+            if (is_numeric($value)) {
+                $this->sheet->getCell($cell)->setValueExplicit($value, \PhpOffice\PhpSpreadsheet\Cell\DataType::TYPE_STRING);
+            } else {
+                $this->sheet->setCellValue($cell, $value);
+            }
 
         } else {
 
             if (is_double($value)) {
-                if (abs($value) >= 1000) {
-                    $this->setCellFormat($cell, '# ##0.00');
-                } else {
-                    $this->setCellFormat($cell, '0.00');
-                }
+                $this->setCellFormat($cell, ($format ?? '#,##0.00'));
             } elseif (is_integer($value)) {
-                if (abs($value) >= 1000) {
-                    $this->setCellFormat($cell, '# ##0');
-                } else {
-                    $this->setCellFormat($cell, '0');
-                }
+                $this->setCellFormat($cell, ($format ?? '#,##0'));
             }
 
             $this->sheet->getCell($cell)->setValueExplicit($value, \PhpOffice\PhpSpreadsheet\Cell\DataType::TYPE_NUMERIC);
@@ -105,6 +99,20 @@ public function setValue(string $cell, $value): self
         return $this;
     }
 
+    /**
+     * Set data format of cell (column, range)
+     *
+     * @param string $range
+     * @param string $format
+     * @return self
+     */
+    public function setCellFormat(string $range, string $format): self
+    {
+        $this->sheet->getStyle($range)->getNumberFormat()->setFormatCode($format);
+
+        return $this;
+    }
+
     /**
      * {@inheritDoc}
      * @see \AnourValar\Office\Drivers\TemplateInterface::setValues()
@@ -462,20 +470,4 @@ protected function getFormat(\AnourValar\Office\Format $format): string
             \AnourValar\Office\Format::Ods => 'Ods',
         };
     }
-
-    /**
-     * Установка формата ячейки
-     *
-     * @param string $cell
-     * @param string $format
-     * @return void
-     */
-    private function setCellFormat(string $cell, string $format): void
-    {
-        $this
-            ->sheet
-            ->getStyle($cell)
-            ->getNumberFormat()
-            ->setFormatCode($format);
-    }
 }
diff --git a/src/GridService.php b/src/GridService.php
index 67968df..0293443 100644
--- a/src/GridService.php
+++ b/src/GridService.php
@@ -264,8 +264,15 @@ protected function getGenerator(
 
             $columns = [];
             if ($totalRange) {
+                $keys = array_keys($headers);
+
                 while ($firstColumn <= $lastColumn) {
-                    $columns[] = $firstColumn;
+                    if (! $keys) {
+                        $columns[] = $firstColumn;
+                    } else {
+                        $columns[array_shift($keys)] = $firstColumn;
+                    }
+
                     $firstColumn++;
                 }
             }
diff --git a/tests/GridServiceTest.php b/tests/GridServiceTest.php
index a2ddb75..3ea9299 100644
--- a/tests/GridServiceTest.php
+++ b/tests/GridServiceTest.php
@@ -190,10 +190,10 @@ public function test_generate_statistic_with_headers_with_shift()
                 $this->assertSame('C5:C5', $headersRange);
                 $this->assertSame(null, $dataRange);
                 $this->assertSame('C5:C5', $totalRange);
-                $this->assertSame(['C'], $columns);
+                $this->assertSame(['one' => 'C'], $columns);
             })
             ->generate(
-                ['foo'],
+                ['one' => 'foo'],
                 [ ],
                 'C5'
             );
@@ -355,10 +355,10 @@ public function test_generate_statistic_with_headers_with_shift()
                 $this->assertSame('C5:E5', $headersRange);
                 $this->assertSame('C6:E8', $dataRange);
                 $this->assertSame('C5:E8', $totalRange);
-                $this->assertSame(['C', 'D', 'E'], $columns);
+                $this->assertSame(['one' => 'C', 'two' => 'D', 'three' => 'E'], $columns);
             })
             ->generate(
-                ['foo', 'bar', 'baz'],
+                ['one' => 'foo', 'two' => 'bar', 'three' => 'baz'],
                 [ ['foo-1', 'bar-1', 'baz-1'], ['foo-2', 'bar-2', 'baz-2'], ['foo-3', 'bar-3', 'baz-3']  ],
                 'C5'
             );