ONEPKG is a file extension for Microsoft OneNote Package Format files. ONEPKG files are supported by Windows devices. The ONEPKG file belongs to the Backup Files category. Below are tips on opening ONEPKG files and programs that support them. Files with the ONEPKG extension are found in Windows operating systems. A common tool for handling ONEPKG files is Office 365. The developer of this program is Microsoft. Additionally, ONEPKG files can be handled by Microsoft Office and Microsoft OneNote.
ONEPKG files are renamed .ZIP files. So you can extract their contents with any zip-decompression utility. You may first have to rename the file’s extension to .zip. Microsoft OneNote allowed users to back up multiple OneNote notebooks in one ONEPKG file. This allowed sharing or backing up multiple notebooks as a single file.
To open an unknown ONEPKG file, associate the ONEPKG extension with the correct application in Windows. Right click any ONEPKG file then click “Open with”>”Choose another app”. Now select another program. Check “Always use this app to open *.ONEPKG files”. ONEPKG files contain data saved in a manner characteristic for Backup Files. The file format standard was defined by Microsoft.
Microsoft OneNote
OneNote for the web