• Editors' rating
    Not yet rated 2.4.0 is a free, open source alternative to Microsoft's Office application suite. It is fantastic if you need basic office applications — such as a word processor or spreadsheet — at no cost. However, large organisations and power users may be disappointed by its lack of features and support.

In its original form, was a proprietary office suite known as StarOffice and developed by StarDivision, but that all changed when Sun Microsystems bought the company in 1999.

Although Sun still sells StarOffice, the company also released the software's source code and created a new, community-driven project; The suite is now free and is available under the GNU Lesser General Public Licence. runs under Windows, Mac OS X and Linux. The download is 127MB and the install process is quick and painless. We originally reviewed 2.0 in 2005, but several revisions later the program has a lot of new features.

Being an open source project, has an intuitive interface that you would expect after feedback from a large community. However, you may be a little confused at first if you're used to Microsoft Office — the two are subtly different. is closer to Office 2003 and below, and is markedly different in user interface from Office 2007's new "ribbon" style.

You can get free support for the software from the forums. We found the help forums to be straightforward, but not comprehensive.

Top ZDNET Reviews has no equivalent to Outlook. However, there are free open source email clients worth checking out, such as Mozilla's Thunderbird 2.

A nice feature of is the fact that you can add on extensions, which offer all kinds of unusual add-ons that proprietary vendors wouldn't touch — English to Hindi Dictionary and Thesaurus anyone?

Broadly speaking, you won't have any problems opening Microsoft Word, Excel or PowerPoint files (including Office 2007 files) in, and you will be able to save to Microsoft's formats for use with Office. A multitude of other file formats are also supported. Unfortunately, at times a document won't be formatted quite right, but it's usually no problem to work around. goes a little further than Microsoft in some places and allows users to export directly to PDF. It also has its own file format, ODF, which Microsoft has pledged to support.

While supports macros, macros written for Microsoft Office won't work in, and can't be transferred, which could serve as a major stumbling block for those looking to migrate, depending on how much effort has been placed into writing macros. You'll have to rewrite them all.

Something you might want to consider if you plan to install across systems with limited resources is that it's considerably more hungry than Microsoft Office. launches a "Quickstarter" on boot that will use up 20MB or so of system memory before you even launch an application. We ran Writer and Microsoft Word simultaneously and found Writer consumed around twice the system resources of Word. is considerably more memory hungry than Microsoft Office

Of all the applications available in, its strength lies with its word processor, Writer. For those who use only the standard functions in Word or another proprietary office software, Writer is likely to meet your needs, unless you rely on a grammar checker, which is missing from the word processor.

Although the feature-set in is smaller than Microsoft Office, the development team has obviously worked hard to make some common tasks simple. For example, allows you to change the default language for different documents, paragraphs or even sections of text — a useful tool for Web publishing.

Changing the default language is easy in

We really enjoyed using Writer's interface. For example, a right click will give you access to commonly used formatting functions. Another useful shortcut is the ability to export directly to PDF with a single click. This function appears across all OpenOffice applications.

In addition, we found Writer's "help suggestions" to be less intrusive than Microsoft's irritatingly perky "Office Assistant", while the help files comprehensively documented the application's functions.

If Writer is the strength of OpenOffice, then Calc is its relative weakness. While Calc is a solid mathematical tool, its capacity to create graphs is inferior — you just can't represent data with the flair of Microsoft Excel, and graphs are one of Excel's most-used features.

Both the type and the customisability of graphs is limited. You're stuck with basic graphs including pie charts, bar graphs and XY scatter graphs. Once you create the graphs, they're basically images, with very little editable dynamic content. If you're in science or finance and need to demonstrate complex equations graphically, or want to create trend lines on your graphs, you may find frustrating.

Graphing options are very limited in Calc

One positive aspect about Calc is that it actually offers around 30 per cent more functions than are offered in Excel (roughly 338 in Calc versus 233 in Excel). Combined with Math, this makes OpenOffice a great mathematical tool and a worthy Excel rival. Alas, if only it could create better graphs.

Turn over to see Math, Base and our verdict.

Draw is OpenOffice's image editing application. It is unimpressive when compared to popular applications like Photoshop and is unlikely to even give the open source alternative GIMP, a run for its money.

When you first open Draw, it looks like it was designed for creating presentations rather than image editing, right down to the side viewing panel that labels your page as "Slide 1". Using the program furthers this impression.

However, it should be mentioned that Microsoft Office doesn't offer a drawing package at all, unless you count Publisher in some editions, which is mainly used to create stationery such as cards.

At first it's difficult to justify calling the OpenOffice's PowerPoint alternative "Impress". On start-up it offers two rather limp templates. However, once you get past that, Impress is a reasonably robust presentation tool. You can download additional templates from the OpenOffice website, which is recommended if you're going to use Impress regularly.

We liked the "tabbed" design, which allows you to move between five different views of your presentation, "Normal", "Outline", "Notes", "Handouts" and "Slide Sorter".

Another nice feature of Impress is that many of the commonly used functions, such as inserting slides or importing images, can be done in a single click. Impress also has the ability to create 3D objects. It's difficult to understand why the OpenOffice developers included 3D objects but not the ability to create custom colours — but colourful spheres do make nice bullet points. Impress also offers a diverse range of animation options, as well as the ability to add sounds.

Math and Base
The inclusion of Math, an equation creating program, is curious considering the limited graphing ability of Calc. If you need to put mathematical equations into your documents, it might be worth downloading OpenOffice just for Math.

Math is based on the proprietary program, MathType, and is similar to the Office Maths ML, offered by Microsoft. As an application, Math is frustrating if you know maths but not code. For example, to create the common quadratic equation:

You have to type: "x={-b +- sqrt {b^2 - 4ac}} over 2a". The mixture of text and symbols is hardly intuitive, but once you get the hang of it, it can be useful. Just don't try to write the code for Schrodinger's equation.

Base is OpenOffice's database application. If you just need to create simple databases — there is an example of a club membership database on the website — you'll find Base a ready and willing application. Base is the Microsoft Access of It should be mentioned here that many versions of Microsoft's Office don't include the Access database package.

While has been consistently compared to Microsoft's Office, for a free software suite, it offers remarkable functionality. Considering Microsoft Office 2007 Ultimate retails at around AU$800 (versions with less features can be substantially cheaper, particularly the home and student versions), and competitors such as Corel's WordPerfect Office X4 sell for around AU$600, has the potential to save you or your business thousands.

In addition, most users will only use a fraction of the available features in proprietary programs such as Microsoft Office or Corel WordPerfect. The word processor is usually the most popular application in any office suite, and considering the diverse functions available in Writer, many users should find will fit their needs.

You should consider if you principally need a good word processor, and some basic office functionality on the side. There are many free or commercial applications that you can mix and match to make up for's weaknesses, it makes a nice piece of the open source set-up jigsaw. Combining with applications like Photoshop Elements, GIMP or Thunderbird should more than make up for its weaknesses.

If you are considering migrating from Microsoft Office — to or even the supported StarOffice — expect power users to initially be frustrated because of the lack of features and the less polished feel compared to Microsoft's offering. There's also the time it takes to get used to a different office suite.

However, despite its shortcomings, remains the most fully featured free office suite we have come across, and for this reason it well deserves our Editors' Choice.