diff --git a/src/Memo/MemoFactory.php b/src/Memo/MemoFactory.php
index c1e6839..e80e083 100644
--- a/src/Memo/MemoFactory.php
+++ b/src/Memo/MemoFactory.php
@@ -5,9 +5,12 @@
 use XBase\DataConverter\Encoder\EncoderInterface;
 use XBase\Enum\TableType;
 use XBase\Table\Table;
+use XBase\Traits\FilepathTrait;
 
 class MemoFactory
 {
+    use FilepathTrait;
+
     public static function create(Table $table, EncoderInterface $encoder): ?MemoInterface
     {
         $class = self::getClass($table->getVersion());
@@ -18,17 +21,15 @@ public static function create(Table $table, EncoderInterface $encoder): ?MemoInt
 
         $memoExt = $refClass->getMethod('getExtension')->invoke(null);
         $fileInfo = pathinfo($table->filepath);
-        // if file extension in UPPERCASE then memo file extension should be in upper case too
-        $memoExt = 'DBF' === ($fileInfo['extension'] ?? null) ? strtoupper($memoExt) : $memoExt;
         if ('.' !== substr($memoExt, 0, 1)) {
             $memoExt = '.'.$memoExt;
         }
-        $memoFilepath = $fileInfo['dirname'].DIRECTORY_SEPARATOR.$fileInfo['filename'].$memoExt;
-        if (!file_exists($memoFilepath)) {
+        $memoFilePath = $fileInfo['dirname'] . DIRECTORY_SEPARATOR . $fileInfo['filename'] . $memoExt;
+        if (false === $memoFilePath = self::resolveFilepath($memoFilePath)) {
             return null; //todo create file?
         }
 
-        return $refClass->newInstance($table, $memoFilepath, $encoder);
+        return $refClass->newInstance($table, $memoFilePath, $encoder);
     }
 
     private static function getClass(int $version): string
diff --git a/src/TableReader.php b/src/TableReader.php
index 71023e3..c379983 100644
--- a/src/TableReader.php
+++ b/src/TableReader.php
@@ -18,6 +18,7 @@
 use XBase\Stream\Stream;
 use XBase\Table\Table;
 use XBase\Table\TableAwareTrait;
+use XBase\Traits\FilepathTrait;
 
 /**
  * @author Alexander Strizhak <gam6itko@gmail.com>
@@ -25,6 +26,7 @@
 class TableReader
 {
     use TableAwareTrait;
+    use FilepathTrait;
 
     /** @var int Current record position. */
     protected $recordPos = -1;
@@ -86,10 +88,14 @@ protected function resolveOptions(array $options): array
 
     protected function open(): void
     {
-        if (!file_exists($this->getFilepath())) {
+        if (false === $filepath = self::resolveFilepath($this->getFilepath())) {
             throw new \Exception(sprintf('File %s cannot be found', $this->getFilepath()));
         }
 
+        if ($filepath !== $this->table->filepath) {
+            $this->table->filepath = $filepath;
+        }
+
         if ($this->table->stream) {
             $this->table->stream->close();
         }
diff --git a/src/Traits/FilepathTrait.php b/src/Traits/FilepathTrait.php
new file mode 100644
index 0000000..c766b74
--- /dev/null
+++ b/src/Traits/FilepathTrait.php
@@ -0,0 +1,25 @@
+<?php declare(strict_types=1);
+
+namespace XBase\Traits;
+
+trait FilepathTrait
+{
+    /**
+     * Check and return case insensitive file path if available
+     */
+    protected static function resolveFilepath(string $filepath)
+    {
+        if (false !== file_exists($filepath)) {
+            return $filepath;
+        }
+
+        $lowerpath = strtolower($filepath);
+        foreach (glob(dirname($filepath).DIRECTORY_SEPARATOR.'*') as $file) {
+            if (strtolower($file) === $lowerpath) {
+                return $file;
+            }
+        }
+
+        return false;
+    }
+}
\ No newline at end of file