Microsoft has confirmed it will be ending support for its Office for Mac 2008 software on 9 April.
The technology giant confirmed the news on Friday, urging users to upgrade to its more recent, premium Office 365 software.
"You can purchase an Office 365 subscription - this includes Office for Mac 2011, as well as all future upgrades to the product," said Microsoft.
"You can also still download updates for Office for Mac 2008 until 19 April 2014, but we recommend you try Office 365 for the best experience."
Office 365 is currently Microsoft's premium package. It grants users access to several of the company's services, including Word, Excel, Powerpoint and Outlook email and calendar.
The Office 365 licence costs either £8 per month or £80 for a year's subscription and lets users install the software on up to five Mac computers. A standalone version of Office for Mac is also available for £219, though it only lets users install the software on one Mac computer.
Mac owners will still be able to run Office 2008 on their machines, though they will no longer have access to technical support or updates from Microsoft.
Microsoft plans to cut support for its slightly newer Office for Mac 2011 software in January 2016.
For a more thorough look at Microsoft Office 365, check out V3's review.
Wikileaks Vault 7 suspect Joshua Schulte fingered by FBI after re-using smartphone passwords on his PCs
Joshua Schulte indicted on 13 counts relating to Vault 7 leaks and trading in images of child abuse
Alexa for Hospitality will link with existing systems so guests can order room service and control the air con
Massive volcanic eruptions could have warmed Mars' surface sufficiently for oceans to form
Examination of fruit flies' brains generated more than one billion data points for scientists to analyse