Structure of CopyFile.Dat:

Byte:

00 - 03 = 4-byte double of length of copy byte entries (1 B. - 2 GB.).

04 - xx = copy bytes.

Structure of UndoFile.Dat:

Byte:

00 - 01 = 2-byte integer of undo paste entries (1-32767).
n=1
02 - 05 = 4-byte breakdown of double precision number of
       file position of start of undo paste area.
06 - 09 = 4-byte breakdown of double precision number of
       number of undo bytes in following bytes:
10 - xx = undo paste bytes.
n=2
...

