you can use save(data, file="filename.csv")

下面的这个包我没有试过，你不妨试试看。

Package dataframes2xls updated to version 0.4.2 with previous version 0.4.1 dated 2008-06-09

Author: Guido van Steen
Title: dataframes2xls writes data frames to xls files
Description: dataframes2xls writes data frames to xls files. It supports multiple sheets and basic formatting.

Diff between dataframes2xls versions 0.4.1 dated 2008-06-09 and 0.4.2 dated 2008-07-20

 DESCRIPTION | 6 +++---
 inst/doc/README | 4 +---
 inst/python/csv2xls.py | 2 +-
 3 files changed, 5 insertions(+), 7 deletions(-)