Files with icbu file extension can be found as calendar data backups made in Apple iCal/Calendar program.

Detailed description

Software that open icbu file

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ICBU file extension - Apple iCal backup

What is icbu file? How to open icbu files?

File type specification:

Backup file type icon Backup file type

icbu file icon: icbu filetype icon

The icbu file extension is related to Apple iCal (now known as Calendar) in Mac OS X (macOS) operating system.

The icbu file is a backup of calendars, schedules and other tasks saved using the program.

  • To back up: Open iCal, then choose Back up Database from the File menu. In the resulting dialog, choose where you want to save the backup file (the current date also gets added to the name) and click Save.
  • To restore: Open iCal. From the File menu, choose Revert to Database Backup. In the resulting dialog, locate your backup file (it ends with a .icbu extension), select it, and click Open.

The default software associated to open icbu file:

Apple Calendar (iCal) icon

Apple, Inc. logoApple Calendar (iCal)  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

Apple Calendar (iCal) is a personal calendar application bundled with Apple Mac OS X since 2002. Calendar was the first calendar application for Mac OS X to offer support for multiple calendars and the ability to publish/subscribe calendars to WebDAV server.

Help how to open:

You can restore these files using the "Revert to Database Backup function"found in iCal.

How to convert:

You can recover *.icbu backups using Calendar/ iCal and then export data to exchange format.

Find conversions from icbu file:

icbu to ics

icbu to vcf

icbu to vcs

Find converter to icbu file type:

ics to icbu

List of software applications associated to the .icbu file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open icbu file, edit icbu file, convert icbu file, view icbu file, play icbu file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting icbu files.

Software that open icbu file - Apple iCal backup

Programs supporting the exension icbu on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Apple Calendar (iCal) for open icbu file action.

Apple macOS / Mac OS X:

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