There are numerous plugins to help with data export including Excel. I can’t recommend any particular plugin . However if just CSV - it is built into Bubble “Export as CSV file” - quite literally a 30 second job to set up.
for example - ❓ Export to Excel or CSV - #14 by solutomn
and the manual
Managing Data - Bubble Docs
and
[Free Plugin] Download Text within RepeatingGroup to CSV - #32 by lindsay_knowcode
and
[New Plugin] bdk RepeatingGroup tools (this one was recommended to me by @jared.gibb )