This question is actually for the Excel GUI, rather than Excel "programming", per se. However, if this is unavailable in the GUI, I would be curious if there's a VBA solution (although, I have basically 0 VBA knowledge/experience).
Is there a way to see which filters are active in Excel, other than just by looking at the funnel icons? As shown in my attached screenshot, some spreadsheets can have columns that extend off the visible screen, so it can be easy to miss the funnel icon indicating an active filter. (Additionally, I think it can be pretty easy to overlook the icon, even amidst only a few columns.)
Ideally, there would be some kind of list showing which columns/headers are actively filtered.
If you merely want a simple list of the columns where a filter is applied then the following VBA code may suffice:
Option Explicit
Function FilterCrit() As String
Dim i As Long
Dim ws As Worksheet
Dim Filter As String
'Application.Volatile
Set ws = ThisWorkbook.Worksheets(1)
If Not ws.FilterMode Then
FilterCrit = "not filtered"
Exit Function
End If
For i = 1 To ws.AutoFilter.Filters.Count
If ws.AutoFilter.Filters(i).On Then
FilterCrit = FilterCrit & "Filter on column " & i & Chr(10)
End If
Next i
End Function
This will iterate the columns and if a filter is applied on any of these columns then it will be listed.
By default all UDFs user defined functions are not volatile and therefore do not automatically recalculate. Yet, you can force them to automatically recalculate with Application.Volatile. But it is highly recommend not to use this option as it can severely slow down your Excel file. Alternative solutions are recommended here: Alternative to Application.Volatile to auto update UDF