Settings for file type and size?

[msauter]

When I upload a new file into "Documents" there is a message:

"You can upload files of any type. Max filesize you are allowed to upload is 32MB"

Is there a possibility to change these settings as an admin?

[ignacio]

This is a PHP configuration. You can change it in your php.ini file. The config options you should change are: max_execution_time, post_max_size and upload_max_filesize.