I was searching for the .ini file, in order to increase the Xmx parameter, so that maybe it also increases processing speed, which is currently obviously too slow. But I can't find the ini file. Someone could help me?
With your free desktop, what's the capacity of the file you are processing?
Actually, you can change rows limit in a config file located here on Windows: <installation directory>\config\application.properties. Just edit the number in your favorite text editor.
Could you please indicate what's the data preparation free desktop version you are using?