I commonly have used EN for years to store various file attachments with my notes such as the common .doc or .txt, but I also use others like .bin, .hex, etc. I used to be able to search for filename:"*.bin" to find the.bin files, for example. Apparently (according to my notes on this issue) I've also been successful using "(.bin)" in the past . Now none of these options seems to work for me on Win7, Web, or Android. Can someone please enlighten me as to what the trick is to perform this action?