I need to display the file extensions of the files in a Document library in a column. I have done a bunch of searching and came across solutions but they don't seem to be working for me.
This is what I have been trying to do:
- Open SPD and select my list
- Select the view that I want to add file extension column to
- Since I already created the column in the list setting on SP I just right-click in the first row of that column and 'Insert Formula', then enter this: @FileLeafRef.Suffix
Now nothing happens, my items don't show the extensions in the column in SPD and not in SP either.
Is there something I am doing wrong with this?