diff --git a/.gitattributes b/.gitattributes
index fdade2f..cf96c40 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -2,3 +2,4 @@ tests export-ignore
 .editorconfig export-ignore
 .gitattributes export-ignore
 phpcs.xml export-ignore
+tests/resources/eol/*.txt binary
diff --git a/lib/jblond/Diff/File.php b/lib/jblond/Diff/File.php
new file mode 100644
index 0000000..b14f575
--- /dev/null
+++ b/lib/jblond/Diff/File.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace jblond\Diff;
+
+use InvalidArgumentException;
+
+/**
+ *
+ */
+class File
+{
+    /** @var array $file */
+    protected $file;
+
+
+    /**
+     * Add data
+     * @param string|array $file
+     * @return void
+     */
+    public function setFile($file): void
+    {
+        if (is_array($file)) {
+            $this->file = $file;
+            return;
+        }
+        if (!file_exists($file)) {
+            throw new InvalidArgumentException();
+        }
+        $file = file($file);
+        if ($file === false) {
+            throw new InvalidArgumentException();
+        }
+        $this->file = $file;
+    }
+
+    /**
+     * return the last line from the file array
+     * @return false|mixed
+     */
+    public function getLastLine()
+    {
+        return end($this->file);
+    }
+
+    /**
+     * Bool return if the file has a new line at the end
+     * @return bool
+     */
+    public function hasNewLineAtTheEnd(): bool
+    {
+        return (bool)preg_match('(\r\n|\r|\n)', $this->getLastLine());
+    }
+
+    /**
+     * Return the File Ending / EOL / EOF Type
+     * @return string
+     */
+    public function getEOLType(): string
+    {
+        preg_match('(\r\n|\r|\n)', $this->getLastLine(), $matches);
+        switch ($matches[0] ?? '') {
+            case "\n":
+                return 'EOL type is Unix (LF)';
+            case "\r":
+                return 'EOL type is Mac (CR)';
+            case "\r\n":
+                return 'EOL type is Windows (CRLF)';
+            default:
+                return '\ No newline at end of file';
+        }
+    }
+}
diff --git a/tests/Diff/FileTest.php b/tests/Diff/FileTest.php
new file mode 100644
index 0000000..4feb8d7
--- /dev/null
+++ b/tests/Diff/FileTest.php
@@ -0,0 +1,146 @@
+<?php
+
+namespace Tests\Diff;
+
+use InvalidArgumentException;
+use jblond\Diff\File;
+use PHPUnit\Framework\TestCase;
+
+/**
+ *
+ */
+class FileTest extends TestCase
+{
+    /**
+     * Test the type of EOF
+     */
+    public function testGetEOLType()
+    {
+        $mac = new File();
+        $mac->setFile('tests/resources/eol/mac.txt');
+        $this->assertEquals(
+            'EOL type is Mac (CR)',
+            $mac->getEOLType()
+        );
+
+        $unix = new File();
+        $unix->setFile('tests/resources/eol/unix.txt');
+        $this->assertEquals(
+            'EOL type is Unix (LF)',
+            $unix->getEOLType()
+        );
+
+        $noEol = new File();
+        $noEol->setFile('tests/resources/eol/no-eol.txt');
+        $this->assertEquals(
+            '\ No newline at end of file',
+            $noEol->getEOLType()
+        );
+
+        $windows = new File();
+        $windows->setFile('tests/resources/eol/windows.txt');
+        $this->assertEquals(
+            'EOL type is Windows (CRLF)',
+            $windows->getEOLType()
+        );
+
+        $a = new File();
+        $a->setFile('tests/resources/a.txt');
+        $this->assertEquals(
+            'EOL type is Unix (LF)',
+            $a->getEOLType()
+        );
+    }
+
+    /**
+     * Bool test if the file has a line ending
+     */
+    public function testHasNewLineAtTheEnd()
+    {
+        $mac = new File();
+        $mac->setFile('tests/resources/eol/mac.txt');
+        $this->assertEquals(
+            true,
+            $mac->hasNewLineAtTheEnd()
+        );
+
+        $unix = new File();
+        $unix->setFile('tests/resources/eol/unix.txt');
+        $this->assertEquals(
+            true,
+            $unix->hasNewLineAtTheEnd()
+        );
+
+        $noEol = new File();
+        $noEol->setFile('tests/resources/eol/no-eol.txt');
+        $this->assertEquals(
+            false,
+            $noEol->hasNewLineAtTheEnd()
+        );
+
+        $windows = new File();
+        $windows->setFile('tests/resources/eol/windows.txt');
+        $this->assertEquals(
+            true,
+            $windows->hasNewLineAtTheEnd()
+        );
+
+        $a = new File();
+        $a->setFile('tests/resources/a.txt');
+        $this->assertEquals(
+            true,
+            $a->hasNewLineAtTheEnd()
+        );
+
+        $b = new File();
+        $b->setFile('tests/resources/b.txt');
+        $this->assertEquals(
+            true,
+            $b->hasNewLineAtTheEnd()
+        );
+    }
+
+    /**
+     * Test get the last string from a file
+     */
+    public function testGetLastLine()
+    {
+        $mac = new File();
+        $mac->setFile('tests/resources/eol/mac.txt');
+        $this->assertEquals(
+            "Lorem ipsum\r",
+            $mac->getLastLine()
+        );
+
+        $unix = new File();
+        $unix->setFile('tests/resources/eol/unix.txt');
+        $this->assertEquals(
+            "Lorem ipsum\n",
+            $unix->getLastLine()
+        );
+
+        $noEol = new File();
+        $noEol->setFile('tests/resources/eol/no-eol.txt');
+        $this->assertEquals(
+            "Lorem ipsum",
+            $noEol->getLastLine()
+        );
+
+        $windows = new File();
+        $windows->setFile('tests/resources/eol/windows.txt');
+        $this->assertEquals(
+            "Lorem ipsum\r\n",
+            $windows->getLastLine()
+        );
+    }
+
+    /**
+     * Test if the file exists
+     */
+    public function testSetFile()
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $file = new File();
+        $file->setFile('foo.txt');
+    }
+}
diff --git a/tests/resources/eol/mac.txt b/tests/resources/eol/mac.txt
new file mode 100644
index 0000000..95b6a4b
--- /dev/null
+++ b/tests/resources/eol/mac.txt
@@ -0,0 +1 @@
+Lorem ipsum
\ No newline at end of file
diff --git a/tests/resources/eol/no-eol.txt b/tests/resources/eol/no-eol.txt
new file mode 100644
index 0000000..e5d3534
--- /dev/null
+++ b/tests/resources/eol/no-eol.txt
@@ -0,0 +1 @@
+Lorem ipsum
\ No newline at end of file
diff --git a/tests/resources/eol/unix.txt b/tests/resources/eol/unix.txt
new file mode 100644
index 0000000..3be11c6
--- /dev/null
+++ b/tests/resources/eol/unix.txt
@@ -0,0 +1 @@
+Lorem ipsum
diff --git a/tests/resources/eol/windows.txt b/tests/resources/eol/windows.txt
new file mode 100644
index 0000000..2b3087b
--- /dev/null
+++ b/tests/resources/eol/windows.txt
@@ -0,0 +1 @@
+Lorem ipsum