https://bz.apache.org/bugzilla/show_bug.cgi?id=68379
--- Comment #1 from PJ Fanning <fannin...@yahoo.com> --- Apache POI does not have a very active community. I am not aware of any active volunteers who have a major interest or experience with the signing feature. Sometimes you need to find the right tool. Couldn't you do some scripting and get Excel to sign your files? Google Docs and some other non-MS tools may also support it. Microsoft created these proprietary formats. There is not much incentive for volunteers to support 100% of what Microsoft support. -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@poi.apache.org For additional commands, e-mail: dev-h...@poi.apache.org