help with sprites

[Tdiddy]

i got a sprite splitter that splits the sprites and auto saves them as there own file. but it saves them as Sprite1 Sprite 2 Sprite 3 and mirage source recognizes files in the sprite folder # 1 ,2, 3 ,4 ect... is there anyway to change it on the server or the client or whatnot to have it recognize as sprite then #?