not able to find out the file

hai,

 

i have an .asmx file which is holding many methods inside the file.when im trying to create new class file its happening but im not able to access the class name into the .asmx file.

 

One more thing is when im clicking on any class name which is mentioned inside the .asmx and pressing fn+f12 it is taking me to some other file which is not editable one.

 

the data which is occuring after performing fn+f12 is the meta data.i dont konw how it is got created.kindly help me to solve this problem.