How can I export audio recording files with bookmarks from Samsung Voice Recorder app?

I have a Samsung Galaxy S8+ phone. I use the Voice Recorder app a lot and I also add several bookmarks to each file. Now, my phone is out of storage space and I need to back up my old recorded files to a computer. Although I know how to find the **m4a files** in my phone storage, I cannot find the **corresponding bookmarks** for each file. So, my question is: - Where can I find these bookmarks in my phone storage? If it is embedded in m4a files, how can I see them on my Windows PC? - If it is only seeable in the same app, does it mean that if I move the files to my computer, I can access the file and its bookmarks whenever I move a copy of it to the recorder app on my phone?