double file extensions

why do some files in windows have 2 extensions,

i dont understand why Microsoft and other large companies do this, only 1 extension is read, the other ignored

is it so people will know that its a certain file even if the 'hide extensions for known file types' is checked/ticked

windows extension file

asked Aug 17 '10 at 17:34

SNIPE
1●1●1●1

2 Answers:

0	Because of the name of the files has it and then the other is actually the extension. answered Aug 21 '10 at 04:30 JF832 (suspended)

0	A filename is set out like this: File-Name.Extension. The first part actually contains the name of the file. The second part is the actual extension (for example, txt is a plain text file). answered Aug 21 '10 at 11:57 edgy 2.1k●20●32●51

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