Explain the problem:
I have attached TableTest.rtf, which contains some regular text, plus a table. It was produced by exporting from MacOS Pages to RTF.

I execute this command line:
pandoc --to commonmark ./TableTest.rtf -o ./TableTest.md

Expected result:

The .md file should contain some lines of regular text, and then a Markdown-formatted table.

Actual result:

The .md file contains an HTML table, where all of the text preceding the table in the RTF ends up in the first td. The content after the table looks correct, and is formatted properly in Markdown.

I get a similar result if I use --to markdown, so I'm suspecting this is a problem parsing/processing the RTF input, as opposed to a problem in the Commonmark/MD generators.

Pandoc version

$ pandoc --version
pandoc 3.1.2
Features: +server +lua
Scripting engine: Lua 5.4

Running on Ubuntu 22.04.2 LTS.
TableTest.zip