diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6dc867a2..47734383 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Fixed
 
 - Avoid potentially unsupported PSR-16 cache keys - [#354](https://github.com/PHPOffice/PhpSpreadsheet/issues/354) 
+- Check for MIME type to know if CSV reader can read a file - [#167](https://github.com/PHPOffice/PhpSpreadsheet/issues/167) 
 
 ## [1.1.0] - 2018-01-28
 
diff --git a/src/PhpSpreadsheet/Reader/Csv.php b/src/PhpSpreadsheet/Reader/Csv.php
index c31a37f5..76bac01a 100644
--- a/src/PhpSpreadsheet/Reader/Csv.php
+++ b/src/PhpSpreadsheet/Reader/Csv.php
@@ -195,11 +195,11 @@ class Csv extends BaseReader
             }
 
             $meanSquareDeviations[$delimiter] = array_reduce(
-                $series,
-                function ($sum, $value) use ($median) {
-                    return $sum + pow($value - $median, 2);
-                }
-            ) / count($series);
+                    $series,
+                    function ($sum, $value) use ($median) {
+                        return $sum + pow($value - $median, 2);
+                    }
+                ) / count($series);
         }
 
         // ... and pick the delimiter with the smallest mean square deviation (in case of ties, the order in potentialDelimiters is respected)
@@ -476,6 +476,13 @@ class Csv extends BaseReader
 
         fclose($this->fileHandle);
 
-        return true;
+        $type = mime_content_type($pFilename);
+        $supportedTypes = [
+            'text/csv',
+            'text/plain',
+            'inode/x-empty',
+        ];
+
+        return in_array($type, $supportedTypes, true);
     }
 }
diff --git a/tests/PhpSpreadsheetTests/Reader/CsvTest.php b/tests/PhpSpreadsheetTests/Reader/CsvTest.php
index 003478fa..85f60721 100644
--- a/tests/PhpSpreadsheetTests/Reader/CsvTest.php
+++ b/tests/PhpSpreadsheetTests/Reader/CsvTest.php
@@ -63,4 +63,30 @@ class CsvTest extends TestCase
             ],
         ];
     }
+
+    /**
+     * @dataProvider providerCanLoad
+     *
+     * @param bool $expected
+     * @param string $filename
+     */
+    public function testCanLoad($expected, $filename)
+    {
+        $reader = new Csv();
+        self::assertSame($expected, $reader->canRead($filename));
+    }
+
+    public function providerCanLoad()
+    {
+        return [
+            [false, 'data/Reader/Ods/data.ods'],
+            [false, 'data/Reader/Xml/WithoutStyle.xml'],
+            [true, 'data/Reader/CSV/enclosure.csv'],
+            [true, 'data/Reader/CSV/semicolon_separated.csv'],
+            [true, 'data/Reader/HTML/csv_with_angle_bracket.csv'],
+            [true, 'data/Reader/CSV/empty.csv'],
+            [true, '../samples/Reader/sampleData/example1.csv'],
+            [true, '../samples/Reader/sampleData/example2.csv'],
+        ];
+    }
 }
diff --git a/tests/data/Reader/CSV/empty.csv b/tests/data/Reader/CSV/empty.csv
new file mode 100644
index 00000000..e69de29b