Option to ignore files by filter

[tropisch]

Is it possible to show all files in the search and just ignore some specified ones?
So basically i want turn the filtering around and specify the ones i want to exclude from being shown.
My usecase:
I want to show all files but i.e. .dlls.
What i have to do now is specify all the ones i want to be shown, like .lnk|.pdf|.xls|.xlsm|.bat|.txt|*.url