Counting blank cells from specific range.

[SSr00]

 =LET(days,FILTER(B3:AC3,LEFT(B$2:AC$2)<>"S"),
maxCount,COLUMNS(days),maxCount-IFERROR(XMATCH("DD",days,0,-1),0))

This formula counts back from the last cell that contain a string "DD". It works perfectly, however it does not run on Excel 2016 and that's what is being used at work. Anyone have any ideas?

Thanks!

 

[Fluff]

Hi & welcome to MrExcel.

Can you post some sample data.
MrExcel has a tool called “XL2BB” that lets you post samples of your data that will allow us to copy/paste it to our Excel spreadsheets, so we can work with the same copy of data that you are. Instructions on using this tool can be found here: XL2BB Add-in

Note that there is also a "Test Here” forum on this board. This is a place where you can test using this tool (or any other posting techniques that you want to test) before trying to use those tools in your actual posts.