Just in case somebody stumbles upon this thread and wonders how this 'Text to Columns' would work exactly:
Setup MusicBee's 'send to clipboard' (Preferences > Tags (2) ) to use a delimiter such as: @
That could look something like:
<Album Artist>@<Album>@<Artist>@<Tr.#>@<Title>
Then after sending tracks to the clipboard, paste them into a new Excel sheet,
- select the first column
- click 'Data' > Text to Columns
- click 'delimited', 'Next'
- behind 'Other', enter a @
- click 'Finish'
done