Thanks for your answer.
The files are now extracted in
/home/user/OusterStudio-3.6.0-765-g4d9a5b9-20190911-Linux-64bit. The x-executable is there but I couldn't launch it. I gave all the permissions to the folder, but it doesn't open. Also I tried to use the terminal to execute
./OusterStudio command, but then appears:
/home/fabian-id/OusterStudio-3.6.0-765-g4d9a5b9-20190911-Linux-64bit/lib/lidarview-3.6/OusterStudio: error while loading shared libraries: libpng16.so.16: cannot open shared object file: No such file or directory
So I had to use
sudo find ~ -name libpng16.so.16 to get the library path, and then use
export LD_LIBRARY_PATH=/home/fabian-id/OusterStudio-3.6.0-765-g4d9a5b9-20190911-Linux-64bit/bin/ to fix it.
./OusterStudioworks and it launchs!
Thanks for your help.