The Smart Tag indicator is a purple triangle in the bottom right corner of the cell letting you know a Smart Tag is available. It indicates that Excel can take certain actions on the data; the action depends on what data is in the cell. You can attach smart tags to dates, financial symbols, names, and many more entries.
Use the built in Help (F1 key) ask the question there!
red triangle
purple triangle
Purple Triangle :)
smart tagssmart tagSmart tag -.-
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cell
It indicates that there is a comment in the cell.
The Mode Indicator, which will show the word "Ready".
Smart Tag~
The ! symbol. For example: =Sheet1!A1
It is on the Insert tab on the Ribbon.
Smart Tag