Frames are already in the normal Word layer. There is no conversion
involved. A frame is simply an instruction to position the paragraph
somewhere unusual.

If they are frames, you can set the text back to normal very simply: ctrl-A
ctrl-Q. This reverts everything to its original style.

However, I think they are more likely to be textboxes. Right-click on the
edge of one: does the popup menu offer 'format frame' or 'format textbox' ?

Unfortunately, VBA will make a worse mess than you already have.

The problem is that each frame is "anchored" to a text paragraph in the body
of the document; most OCR programs put the anchors for all frames in the
first paragraph on the page. When you right-click a frame and choose Format
Frame and then the "Remove frame" button, the frame's text is dropped at the
anchor position, not at the point on the page where it appears to be. With
two or more frames, the texts can even appear out of order -- text from a
frame near the bottom of the page can be dropped before text from a frame at
the top.

When you use VBA to do the equivalent, you have no control over where the
text is dropped, so you can't prevent the scrambling that results. Then
you'll spend hours trying to figure out which piece belongs where.

To get the text where it belongs, it will actually be quicker to select the
contents of each frame manually, cut and paste it into the regular text at
the proper position, and then delete the frame. Take the word of someone
who's tried it. :-(

Before you do this, you might try scanning the tables again, this time
turning off any feature in the OCR program that attempts to preserve
formatting. If you're lucky, you can get a plain-text file that you can
import directly into Excel.