by Nobbie » 02. February 2015 15:57
"Xampp" is only an abbreveation and not a software, you neither can upload something with Xampp nor you can change any settings. That may explain your difficulties to find appropriate infos.
Probably you mean a setting of PHP, which is configured by php.ini. There is an option called "max_upload_size" which is set to 2M per default. Maybe this is, what you are looking for.