The CSV columns should be:
source,target,regex,type,code,match,hits,title
source: any source url or partial
target: any target url
regex: any regular expression, if used, can match using capturing groups () and $1, $2, $[…]
type: url, random, pass, error, nothing
code: 301, 302, 307 (301 is usual, permanent redirect)
match: url (url only), referrer (url and referrer), agent (url and user agent), login (url and login status)
hits: set the starting hits counter.. usually 0
title: optional title or description to display in admin
Example of rows:
/old-page,/new-page,,url,301,url,0,Some optional title
/old-page2,/new-page,,url,301,url,0,