title: How to access files on Google Colab notebook
body: <p>How can I access the files on the left bar of Google Colab? By default sample data is given, when I run <code>!ls sample_data</code> command it lists the files as it should:</p>
  
  <pre><code>anscombe.json             mnist_test.csv
  california_housing_test.csv   mnist_train_small.csv
  california_housing_train.csv  README.md
  </code></pre>
  
  <p>But when I run following code:</p>
  
  <pre><code>import pandas as pd
  data = pd.read_csv('content/sample_data/mnist_test.csv')
  print(data.head())
  </code></pre>
  
  <p>I get an error: FileNotFoundError</p>