using the
"open "c:\bla.txt" for append as #1 etc"
inputs the string at the end of the file

however, for my purpose it needs to be at the beggining of the file? how do i do this?

also how do i then remove this string from the beginning and restore it to it's original state?

the basic idea is to corrupt a file so it is unreadable and then uncorrupt it

cheers