BusyMac has released BusyCal 2.0.3, a maintenance release with an assortment of fixes and user interface additions. The update fixes a syncing bug that unsubscribed Google calendars, adds Show Declined & Canceled Events to the View menu, displays meeting requests in the Inbox for Google Calendar (as well as older CalDAV servers), sends Sync Alarm snoozes/dismissals across multiple devices when syncing through iCloud, enables alarms to be added to meeting invitations, and merges duplicate birthdays. It also adds the following localizations: German, French, Dutch, Spanish, Italian, Japanese, Korean, Portuguese (Portugal), and Portuguese (Brazil). You can download a trial of BusyCal via the BusyMac Web site, but the only way to purchase the app is through the Mac App Store, where it’s currently selling for $29.99 through 15 March 2013. Remember, you can learn more about BusyCal in the free “Take Control of Calendar Syncing and Sharing with BusyCal.” ($49.99 new, free update, 9.0 MB, release notes)
Extract Directly from Time Machine
Normally you use Time Machine to restore lost data in a file like this: within the Time Machine interface, you go back to the time the file was not yet messed up, and you restore it to replace the file you have now.
You can also elect to keep both, but the restored file takes the name and place of the current one. So, if you have made changes since the backup took place that you would like to keep, they are lost, or you have to mess around a bit to merge changes, rename files, and trash the unwanted one.
As an alternative, you can browse the Time Machine backup volume directly in the Finder like any normal disk, navigate through the chronological backup hierarchy, and find the file which contains the lost content.
Once you've found it, you can open it and the current version of the file side-by-side, and copy information from Time Machine's version of the file into the current one, without losing any content you put in it since the backup was made.