How to convert Excel comments to ChemDraw .cdx? Not sure whether this might be a Superuser or StackOverflow question... but I hope some Chemist can help me with this.
I have an Excel table with cells which contain comments &quot;by Cambridge Soft&quot;. I assume that these comments somehow contain the ChemDraw data of the structure. It seems to be ASCII-characters only.

How can I get these comments into a .cdx file?
I tried to save these comments as a text file, renamed it to test.cdx and tried to open it with ChemDraw... no success. I don't have ChemOffice available, which possibly might handle this.
So far, I haven't found any useful information about this on the web. The CambridgeSoft pages are not very informative.
Since these are quite a few structures I don't want to do this manually, but in an automated process. Python would be available. Any hints or ideas?
Because you find these entries in a Excel workbook, it is likely that this spreadsheet was created with Chemdraw's add-in for Excel (company's demo) to embed chemical formulae:

(source).
to provide a bridge between the two worlds to display chemical libraries (promotional example, or manual chapter 13).  To use it, you need both access to Excel as well as ChemDraw.
The (part of the) string shown by you does not look like the typical content of the binary .cdx, nor the human readable .cdxml file which would be understood by openbabel, a program written in the intent to interconvert structure files used in chemistry (it may read .cdx; but read and write .cdxml) on a one-by-one basis (e.g., in a GUI), or programmatically (e.g., C, Python).
Maybe you may identify the author of the spreadsheet.  Or find support by the software's authors (for some years now by PerkinElmer) / add-in maintainers (e.g., on GitHub).  It is not obvious their format were readable by similar products (e.g., ChemAxon's JChem).