.ICALTODO File Extension

File Type:
iCal To Do File

Having trouble opening .icaltodo extension? Don't panic! This page explains what icaltodo files are as well as suggests programs you may use to open icaltodo files. You can download these programs through this page.

What is a ICALTODO file?

Icaltodo file extension has iCal To Do file type, developed by Apple, which is associated with the "data files" category.

Spotlight is a search tool integrated into Mac OS X. Calendar data files used by this program have the .ICALTODO extension. They store cached todo information required for searches. ICALTODO files are linked to calendar todo items added by the user in iCal. Apple iCal was renamed to Apple Calendar with the release of Mountain Lion OS X in 2012.

To learn how you can open the given file, read the information below.

icaltodo file icon
File Type:
iCal To Do File
Data Files

How to open ICALTODO file?

Double click the icaltodo file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .icaltodo extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the icaltodo extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the icaltodo file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open ICALTODO files

  • MacOS MacOS
    • Apple Calendar Apple Calendar

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the icaltodo file as well. Download Universal File Viewer for your OS.

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