Art. 2853.  Purported testament must be filed, though possessor doubts validity

If a person has possession of a document purporting to be the testament of a deceased person, even though he believes that the document is not the valid testament of the deceased, or has doubts concerning the validity thereof, he shall present it to the court with his petition praying that the document be filed in the record of the succession proceeding.

A person so presenting a purported testament to the court shall not be deemed to vouch for its authenticity or validity, nor precluded from asserting its invalidity.