[Useless]

I have been using FlashFXP for many, many years. It's not free, but you can use it for free for quite awhile without any feature loss. I think it costs only $29 or something like that. I haven't bothered to purchase or register my most recent copies. As you can discover on their support forum, the owner has been sent to prison for a long, long time.

Anyway, in options, you can tell it to skip certain file types.