Unlike other Office programs such as Word or Excel, PowerPoint 2013 under Windows 8.1 or 7 does not include a tool that automatically sorts a list of items alphabetically. You can, however, sort items, slides or even elements on a slide -- such as Clip Arts, pictures or text boxes -- by manually moving them up or down.
Sorting a List Alphabetically
Select the slide that contains the list you want to reorder by clicking on its thumbnail in the Slides pane. Click on the text box to select it.
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Move your cursor over the bullet next to the first list item you want to move up or down. When your cursor turns into a four-headed arrow, click-and-drag the item to its new location.
Click on the Save icon to save your PowerPoint presentation once you have finished sorting the list.
Sorting Slides Alphabetically
Click on a thumbnail to select the first slide you want to move.
Drag the thumbnail to move the slide up or down the list.
Select Save once you have finished editing your presentation.
Sorting Elements Alphabetically
Hover your cursor over the edge of the first element you want to move until the cursor turns into a four-headed arrow.
Click-and-drag the element to its new location on the slide.
Save your presentation file by clicking on the Save icon.
As an alternative to ordering list items alphabetically, you can create a new list or modify an existing one so that it uses alphabetically-sorted letters instead of bullets or numbers. To do so, select the contents of a text box and open the "Home" tab. Click on the arrow next to "Numbering" in the Paragraph group and select "A, B, C, ..." from the menu.
If elements on a slide appear misaligned after you move them up and down, open the "Format" tab and click on "Align." Select the most appropriate alignment type -- such as "Align Left" or "Align Center" -- from the menu.