While U.S English is the default display language for WordPress, the software has the built in capacity to be used in any language. This is done by installing the .mo languages translation files in a languages folder in wp-content.
If you want to create or modify a .mo file you need to use poedit and the .po file (refer to Translating WordPress for more information).
Installing Languages
1. Download the required .mo languages translation file from:
a. Languages for WordPress MU – contains 36 different languages for WordPress and WordPress Multisite that have been collated and edited for easy use
b. http://svn.automattic.com/wordpress-i18n/
NOTE:
- Downloading the Languages for WordPress MU is the easier option because it can be time consuming locating the correct files on http://svn.automattic.com/wordpress-i18n/
- Languages for WordPress MU contains both .mo and .po languages translation files. To add a language to your site you upload the .mo file. The .po files are so you can edit and improve the translations.
2. Unzip the downloaded files to a folder on your hard drive
3. Create a new languages folder on your hard drive and add all the .mo files to your languages folder

4. Launch FileZilla.
5. Enter your domain name, your username and password.
- NOTE: these are the same username and password that you use to log into your cPanel.
6. Click Quickconnect.
7. Locate the languages folder on your computer.
See Next:
Language Options
