Open Exodus 19-40 (AYBC) to the translation of Exodus 31 (that link I provided should get you there).
Select the two paragraphs from verse 12 to 18.
Copy & paste into Word.
The Source markings (R for Redactorial stratum of Torah, E for Elohistic source) do not come over.
Here's what they look like in the resource:

After pasting into Word:

Just the brackets (and a question mark) come across, not the letters indicating the sources.