AA is short for Armed Forces of the Americas - all branches of the military forces of the United States (Army, Air Force, Coast Guard, Marine Corps and Navy). APO is short for Army Post Office, which is part of the Military Postal System; it serves land-based military personnel (typically Army and Air Force). FPO is short for Fleet Post Office and serves water-based soldiers (typically the Navy, Marine Corps and Coast Guard).
Count distinct values in Excel (unique and 1st duplicate occurrences) To get a count of distinct values in a list, use the following formula: =SUM(1/COUNTIF(range, range)) Remember, it's an array formula, and therefore you should press the Ctrl + Shift + Enter shortcut instead of the usual Enter keystroke.
How this formula works. COUNTIF counts the number of cells in the range that contain numeric values greater than X, and returns the result as a number. If the value in cell a1 is 70, the criteria will be >70 after concatenation. Excel Formula Training. Learn Excel formulas and functions with concise, clear videos.