The default spacing in Microsoft Word for Mac 2011 is set to120 percent of the default font size. However, you can configure Word for Mac to set single spacing as the default for text in the current document or in the Normal template for all future documents. You can also set the spacing between paragraphs in a single document or in the template. By default, Word 2011 inserts 1 1/2 spaces between paragraphs. Decrease the paragraph spacing setting to single space, if desired, in the Line Spacing Options settings.

I have an iMac OS X with Microsoft for Mac installed. Outlook plugin joinme for mac. Scanner app for mac. The default line setting on all word documents is double spacing. I need to change this to single spacing, but there seems to be no default.