Can anyone help me to save my old .ARR and .ALL files to .CPR
I am willing to pay for the service
No need to pay for that, just Cubase SX3, which was the last version able to open these project files formats. Check this :
Download Links to Older Versions of Cubase - Cubase - Steinberg Forums
EDIT - Sorry, I just realized that you are having issues precisely with Cubase SX3 installation, as exposed in another thread. Forget my post… 