If you have Excel 2013 or later, you can use FORMULATEXT() to convert the formula to text and separate the values.
e.g. if your original formula is in A2, try:
=IFERROR(0+TRIM(MID(SUBSTITUTE(SUBSTITUTE(FORMULATEXT($A2),"=",""),"+",REPT(" ",100)),1+(100*(COLUMNS($A$1:A$1)-1)),100)),"")
copied across as far as necessary to extract the values between + signs.
You can copy these down for other formulas in column A.