Thank you for your response.
Terminal result:
luis@luis-G41M-Combo:~$ chmod +x FurnitureLibraryEditor-1.14.jar
chmod: cannot access `FurnitureLibraryEditor-1.14.jar': No such file or directory
luis@luis-G41M-Combo:~$

The file is in “Home, Sweet Home 3D ver. 4.5
How I use this on command?