With Word open click File.
Click New > My templates.
Select either Letterhead or Official Document and then click OK.
A new document will open with the correct formatting optionssettings.

Office 2016

Launch Word, from the new document window (you can also access this by clicking File > New) click Shared.

Image Added

Select Letterhead or Offical Document.

Warning
If you have any personalised templates, the Shared tab may appear as Custom, if this is the case select Custom > Templates for the default Letterhead and Offical Document templates or Custom Office Templates for your personal ones.

Image Added

A new document will open with the correct formatting settings.

Image Added

PowerPoint Documents

With PowerPoint open click File.
Select New > My templates.
Select A3 Poster or A3 Poster longer title and click OK.
A new document will open with the correct formatting optionssettings.

Launch PowerPoint, from the new document window (you can also access this by clicking File > New) click Shared.	Image Added
Select A3 Poster or A3 Poster longer title.	Image Added
Click Create.	Image Added
A new document will open with the correct formatting settings.	Image Added

Make any changes to a default template as required then click File.	Image Added
Select Save As > Browse.	Image Added
From the Save as type drop down select Word Template (*.dotx).	Image Added
Note that the save path has changed to your Custom Office Templates folder, do not change this. Enter a descriptive name as the File name and then click Save.	Image Added