Install to Raspberry PI 4

I downloaded the raspberry file and extracted the compressed files in the temp/qvtlm folder but now I don't know what to do. sorry but I'm learning to use this operating system recently

You should start by reading the documentation (link on this site), there is a chapter about RPI installation.

sorry, I try to do somethings....
"pi@openplotter:~/qtVlm/qtVlm $ ./qtVlm
./qtVlm: error while loading shared libraries: libpulse-mainloop-glib.so.0: cannot open shared object file: No such file or directory
pi@openplotter:~/qtVlm/qtVlm $ ./qtVlm -platform xcb
./qtVlm: error while loading shared libraries: libpulse-mainloop-glib.so.0: cannot open shared object file: No such file or directory

As stated in the documentation page 10, in that case you should try
sudo apt -y purge "pulseaudio*" and reboot

Hi Maitai, thanks a lot for your time.
Now I have this problem:

/qtVlm: error while loading shared libraries: libpulse-mainloop-glib.so.0: cannot open shared object file: No such file or directory

Hello,

You need in fact to install (using apt install XXX) all missing library.

To find the name of the library you should use google.

So you should:
- launch qtvlm
- see the error and name of the missing lib
/qtVlm: error while loading shared libraries: libpulse-mainloop-glib.so.0: cannot open shared object file: No such file or directory
- search it in google
libpulse-mainloop-glib.so.0
- you'll find here this name: libpulse-mainloop-glib0
- do as root (or with sudo) apt install XXXX
apt install libpulse-mainloop-glib0
- restart the process until qtVlm can launch

Please report here any error during the apt install