=AND(ISBLANK(D2:D98), ISBLANK(E2:E98), ISBLANK(F2:F98), ISBLANK(G2:G98), ISBLANK(H2:H98), ISBLANK(I2:I98), ISBLANK(J2:J98), ISBLANK(K2:K98), ISBLANK(L2:L98), ISBLANK(M2:M98), ISBLANK(N2:N98))
This is what I have for my custom formula -- and it works. It's just very time consuming to implement and edit. Is there a better way?
Using Google Sheets, but can and would switch to Excel 2013 (what is available to me at work) if it would make a difference.