I have a bunch of data that I'd like to filter by specifically excluding one
piece of data. Specifically, if one column in my data contains the value, I
would like to use <1803 as the criteria. However, it seems that Excel
treats that cell as if it were empty. Is it possible to have a "not equal
to" in an advanced filter?

Also, and I don't think it makes a difference, the column containing the
1803 also has stuff like 0507, 0110, 1409, 1815--all defined as text because
leading zeros must be included. I've tried using a leading ' before the
number, but that doesn't work, either.

Any assistance would be appreciated.
Thanks