Nearly lunchtime

While my program is half-way through processing 61,000 documents, I thought I'd mention the view.
If I peer over my reading glasses, out of the window, I see the tops of trees, looking northwards over the Downs to Oxfordshire.  A few swifts are scooting about, as if flinging themselves from one invisible to trapeze to another.  I was hoping to mention a red kite wheeling about, but I haven't seen on yet today.  Plenty of time yet though.
Some clumpy low clouds, light grey to white, are drifting from left-to-right; the trees are moving very gently, as if stretching their shoulders after a morning hunched over a laptop.
And now my program has stopped running, but it's only done 37,800 documents! "Type mismatch" error. Why would someone have created a document with two company references on it? Why? One document out of 61,000 that doesn't fit the template. Options are: edit the duff document; change my code to allow for it; or simply bypass it.
At least 12 swifts are unaware of this dilemma.  I wish I was.