Open ICBU file

Apple iCal backup

What is icbu file? Understanding and opening icbu files

icbu file icon Are you facing difficulties opening icbu files on your computer, or wondering exactly what icbu file is?
We've got the best software solutions for opening icbu files effortlessly.

Apple iCal backup

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

Further details

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.

Open icbu file with:

Apple Calendar (iCal) icon

Apple Calendar (iCal)

Apple's personal calendar application for Mac OS X

What file extension actually is?

Simply put, file extensions are the characters after the dot in the computer file name, so for example document-name.pdf has file extension „pdf“. This helps Windows to identify which program should be used to open the file.

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