The Uber Files are a collection of over 124,000 documents from 2013 to 2017, comprising 83,000 emails and 1,000 other conversation, leaked to the Guardian.
The leak detail the extensive support Uber got from leaders such as Emmanuel Macron and ex-EU commissioner Neelie Kroes.
Uber's initial European launch happened in Paris, where it faced fierce opposition from the taxi industry that resulted in violent public protests.
In August 2014, recently appointed minister for the economy, Emmanuel Macron, saw Uber as an opportunity for growth and new jobs, and aided Uber lobbying in France.
Later as President of France, Macron had first-name conversations with Travis Kalanick, CEO of Uber, and told him he would reform laws in the firm's favour.
The files also reveal Uber's relationship with one of Europe's top officials, European Commission vice-president Neelie Kroes.
It reveal she was in talks to join Uber before her term ended and secretly lobbied for the firm, a potential breach of EU ethics rules.
As a commissioner, Ms Kroes oversaw digital and competition policy, and was a leading role in hitting Microsoft and Intel with massive fines.
The firm also used a "kill switch" to prevent law enforcement to access the company's computers during raids.
The kill switch was used in Canada, Belgium, India, Romania and Hungary, and at least three times in France.
In 2017, Travis Kalanick was forced out by shareholders.
In response to the leak, Uber admitted "mistakes and missteps" but said the firm has transformed under its current chief executive, Dara Khosrowshahi.
