Merci!
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En fait j'ai trouver (Nettoyage ancient 1- sudo apt-get remove libreoffice-core 2- sudo apt-get remove --purge libreoffice-core)
Download LibreOffice 5.3 from the official downlad page:
http://www.libreoffice.org/download/" onclick="window.open(this.href);return false; (Select Linux x86 (deb) for 32 bits systems or Linux x64 (deb) for 64 bits systems.)
Step 2 of 3 – Extract the .deb packages Step 3 of 3 – Install .deb packages Open a terminal.
Change the current directory to the location of the .deb packages: cd ~/Downloads/LibreOffice_5.3.0.x_Linux_x86-64_deb/DEBS
Finally, install all .deb packages:
sudo dpkg -i *.deb
Facile comme 1-2-3-4