ONECACHE file format description

ONECACHE file format

We made this page to help you understand how to work with ONECACHE files. Here, you can find info on software that can handle these files. It includes simple programs for opening and converting them.

Learn about the ONECACHE file and its functions here!

We also explain how to convert them into other types. It's simple and hassle-free. For opening or changing ONECACHE files, this page offers all the tools you need.

#1 Microsoft OneNote Cached Data

The ONECACHE file is categorized under Data. It is associated with Microsoft Office OneNote, serving as a Microsoft OneNote Cached Data. Microsoft OneNote is a tool for notetaking, information gathering, and multi-user collaboration by Microsoft. Visit the website of Microsoft Office OneNote for a detailed description of the ONECACHE format.

Application:Microsoft Office OneNote
Category:Data files
Magic:- / -

Microsoft OneNote Cached Data related extensions

  • snip Microsoft Windows Snipping Tool Snip Data
  • edz PTC Creo View ECAD Package
  • ois Origin Analysis Theme Data
  • usg PC-Doctor for Windows Data

Windows can't open your ONECACHE file?

When you try to open a file by double-clicking it, Windows looks at the file's name to figure out what to do. If Windows doesn't know the file type, it'll ask you to choose an app to open this ONECACHE file.

To set the ONECACHE file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. In the Default apps section, you will find various categories. They include Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate. For example, choose Photos for image files, or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the app you want is not listed, click on More apps to see more options. Or, click on Look for an app in the Microsoft Store to search for apps.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set ONECACHE file association. Many apps can open files. They don't need a specific file association to be set.

Handle ONECACHE files with care

Exercise caution when handling ONECACHE files from unknown sources. Files from certain sources can threaten your computer's security. They might contain malware, viruses, or harmful software. To minimize risks, avoid downloading or opening unfamiliar ONECACHE files. Use trusted antivirus software to scan files from unknown sources before opening.

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