I haven't heard about Clipper in years. I thought it died out along with QA, an old dos based database program. Hmm? I think it was also written in Clipper too.
In any case, you may not be able to link it with Excel because I tried many years ago to do the same with QA - and i was an expert with it back in those old days.
Perhaps, you need to learn Clipper so that you can build something to export its data into a dos text file that Excel or Access can read or import. I had contemplated this method myself, but I saw Clipper as another dying language and not worthwhile to learn just to build a one time method to export data into a different format.
If you want to try to migrate Clipper data so that you can end the use of that dos base program and start a new more universal format, you might try producing report consisting of all data in Clipper, and then see if you can ocr it.
Unfortunately, 15 years ago there was no such thing as ocr and back then I had data that needed to be migrated between two completely incompatible database's. Back then software were not friendly with each other.
So i was given 6 employees to hand input all the accumulated data from the old db into a new one i developed. If i recall, it took about 6 days with 6 employees to migrate 6 years of tedious data. But it was a success and it was the only method at the time.
~gl.