France on Tuesday declassified documents in the presidential archives relating to the 1994 Rwandan genocide, in which Kigali accuses Paris of having an indirect role.
A decision to declassify the papers was signed on Tuesday and concern "documents in the Elysee relating to Rwanda between 1990 and 1995," a source in President Francois Hollande's entourage said.
"The president had announced a year ago that France must provide proof of transparency and facilitate remembrance of this period," the source said.
The papers, which include documents from diplomatic and military advisers and also minutes from ministerial and defence meetings, will be available to both researchers and victims' associations, the French presidency said.
Ties between France and Rwanda are strained as Rwandan President Paul Kagame accuses Paris of complicity in the genocide because of its support of the Hutu nationalist government that carried out the killings of at least 800,000 people, mainly ethnic Tutsis.
Paris has repeatedly denied the accusations and insists that French forces had worked to protect civilians.