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ONETASTIC file extension

The table below provides useful information about the .onetastic file extension. It answers questions such as:

  • What is the .onetastic file?
  • What program do I need to open a .onetastic file?
  • How can the .onetastic file be opened, edited or printed?
  • How can I convert .onetastic files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Onetastic for OneNote Data

ONETASTIC file is a Onetastic for OneNote Data. Onetastic for OneNote is a multi-purpose add-in for Microsoft OneNote.
ONETASTIC format description not yet available
Category: Data files
Application: Onetastic for OneNote
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
ONETASTIC aliases:
ONETASTIC related links:
ONETASTIC related extensions:

Other types of files may also use the .onetastic file extension.

🔴 Can't open a .onetastic file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .onetastic file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .onetastic file extension, write to us!

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