Hi Brian
I wish i could say it did help but unfortunately not. It works with the whole cell contents but doesnt seem to pick out a word within the cell. For instance, one of my list has contents "X1 G43". Now if I have "X1 G43" in the cell Xn (using your example) i get count 1 returned which is correct; but if i have "X1" in cell Xn it returns 0, which is clearly wrong (at least as far as my requirements are concerned). And yes, i do have regular expressions enabled in Calc > Calculate. My version is 5.2.2.2 x64 and im using 64bit windows 7.
G.