A daily updated filename extension database!

ONETMP file extension

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

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

✅ Microsoft OneNote Temporary File

ONETMP file is a Microsoft OneNote Temporary File. Microsoft OneNote is a tool for notetaking, information gathering, and multi-user collaboration by Microsoft.
Category: Data files
Mime-type: application/onenote
Magic number: -
Magic string: -
Sample: -
ONETMP aliases:
ONETMP related links:
ONETMP related extensions:
Microsoft OneNote Table of Contents

Microsoft OneNote Document

Microsoft OneNote Package

Microsoft OneNote Binary Data

Microsoft OneNote Cached Data

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

🔴 Can't open a .onetmp 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 .onetmp 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 .onetmp file extension, write to us!

🔴 Rate our ONETMP page

Please help us by rating our ONETMP page on a 5-star rating system below. (1 star is poor, 5 star is excellent)

5 of 5 stars (13 votes)
Thanks for voting!
Invalid vote.
Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文