The C1Schedule control will use localization files automatically according to the culture selected in the application as long as you haven't moved files to another location or excluded files from the project. By default, the current culture is designated as System.Threading.Thread.CurrentThread.CurrentCulture. If you want to use a culture other than the current culture, you can set the desired culture in your application using the following code:

// Set desired culture, for example here the French (France) locale.
System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("fr-FR");