Void fseek(File h, Int p)
h: A file handle
p: The byte position to seek to (if the file contains multi-byte UTF-8 characters, and is being read as a string, be aware of the problems that positioning the pointer part way through a multi-byte character may cause)
Seek to the specified byte of the file. Files opened with the
Append file mode will always have writes occur at the end of the file, though this function will affect reading.