First off, you don't play a .001 file. This extension is commonly used hand-in-hand with the .002, .003, etc... You need all the pieces of the file in order to use them. You need to download a program that can piece together these files. After your piece them together, you can use the file.
001 file is one of the first files of the split archive made with various programs on file splitting and joining utilities. It can be used to split large archive to smaller and more manageable file. This can be found and downloadable on Fileinfo website.
There are many utility outside to recover deleted files. The one I used before includes asoftech data recovery, 001 file recovery.
.001
001 = one
0.000 001 is one millionths.0.000 001 is one millionths.0.000 001 is one millionths.0.000 001 is one millionths.
9.1e - 001 = 0.91
0800 001 001
1.001
A PHP file is not a media file, so winamp (and so any other media player) cannot play that file.
There isn't a 001 Moshling.
23 times .001 = 0.023
There is no moshling 001.