[Therion] Importing Compass files

[Graham Mullan]

Olly Betts wrote

If there are other formats people would find it useful to be able to read,
it's probably not hard to add support for them.

Cheers,
    Olly

I am very rusty with the way they are organised, but if there is any way of
getting Survex and/or Therion to read files from Walls I'd be grateful.

Graham