A multi-platform office productivity suite. It includes the key desktop applications, such as a word processor, spreadsheet, presentation manager, and drawing program, with a user interface and feature set similar to other office suites. Sophisticated and flexible, OpenOffice.org also works transparently with a variety of file formats, including those of Microsoft Office, and the vendor-neutral OpenDocument standard from OASIS. This program has been translated into Khmer (so the interface is all in Khmer not English).
To Download follow these instructions:
Then choose your operating system and language and click the download button as shown in the picture below (if you already have OpenOffice installed you can choose to download just the language pack to enable the interface in Khmer). Moreover, if you have problem with changing language click here to see how to change language: