Assuming you already downloaded and installed your desired language packages from http://www.magentocommerce.com/translations, you may want to have your store in your local language, and also in another languages, English for example.
Category Archives: Magento Coockbook
Installing Magento With Demo Files
Here’s something important to know about Magento installation: you should decide in advance whether you want your initial installation to include demo product files, or leave it lean and clean with an empty store.