🚀 go-pugleaf

Help !
I have a paper (backup is too old) written in Writenow 2.0, mostly text
with 2 figures (superpaint), + bunch of eqns done in maceqn
Working on an 80MB hard disk, with 22mb free
maciix 4mb ram, sys6.0.3

Upon editing an eqn in Maceqn and then selecting it to copy
a dialog showed up from Writenow saying approx
you are almost out of disk space, close other documents, compact, undo
I selected close other documents , and after a second or two
was presented with the same dialog, with 'close other docs' dimmed
selected 'compact file (lose backup in the process)'
was presented with the dialog again, selected undo
was presented with a system crash

The document still exists. Upon trying to open it with writenow
it fails to open it with error -39, file is open for write
or with file is in use, attempts to work with a copy of the
file give the same result and prevent deletion (locked or in use)

I 've tried the close file da, macsnoop, Resedit (info bits), Mactools
and Fedit without success

What is the format of Writenow files ?

Using the file utility programs I can look at the first few sectors that show
the text from pages 1-3, then some stuff that is apparently the superpaint figs
then lots of stuff that looks like binhex rather than text.

Any help to recover the file will be appreciated.

Thanks
uf749@cc.usu.edu