How do I get countifs to select all non-blank cells? I have two other criteria, so using counta alone is not an option.
countifs
counta
Using istext<
istext<
Use a criteria of "<>". It will count anything which isn't an empty cell, including #NAME? or #DIV/0!. As to why it works, damned if I know, but Excel seems to understand it.
"<>"
#NAME?
#DIV/0!
Note: works nicely in Google Spreadsheet too
Google Spreadsheet