Language selection

In the case of the Project File it should be noted that these should be preserved for a number of years which is dependent on the local legal regulations and the rules of the company in question.  
How often does it happen that a Project File transfer is good (the question is often to whom) and that access is not provided to the Project File after the project is completed (thinking in particular electronic and Project Files)?

The Project File is a very important piece of evidence during internal / external audits and also when, for example, a project for an external client is executed and the client, for whatever reason, is so dissatisfied that the supplier is brought to justice.