File Extension ONE

.ONE File

File extension: ONE
File type: Note File
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Notes about the ONE file extension:



Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.

The ONE file type is primarily associated with 'OneNote' by Microsoft Corporation. OneNote is an application for free-form note taking on your computer. It accepts typed or handwritten (if you have a digitizer) input as well as things you copy/paste from other applications. It also supports audio recordings and does some advanced searching across the notes to make it easy for you to find notes you've composed.

Detailed information for file extension ONE:


Primary association: OneNote
Company: Microsoft Corporation
Identifying characters Hex: E4 52 5C 7B 8C D8 A7 4D AE B1 53 78 D0 29 96 D3 , ASCII: .R\{...M..Sx.)
Related links: OneNote FAQ

Other applications associated with file type ONE:

  • docPointer (Visual ReadMe File) by docPointerdocPointer visualizes links to documents and Web sites using graphical Map Pages. Users can navigate through these pages just like HTML -pages with docPointer browser, which also acts as an authoring tool. You can show how files are really organised as ReadMe files are no longer just plain text. ReadMe files can also be displayed using Web browser such as Firefox or Explorer. docPointer has features from desktop, drawing programs and Web browsers. Visual ReadMe files can be exported to SVG (Scalable Vector Graphics) and Flash. The .ONE extension was used by version 1.x of the program. When Microsoft took it for OneNote, the extension was changed and the program now uses .B4U (vesion 2.x). This association is classified as Graphic.
  • EdgeCAM (Licensing Data Ffile) by Pathtrace Engineering Systems.ONE files, along with .RNT and .TME, are Pathtrace's licensing files, used to update the dongle based licensing sytem on a users PC for the EdgeCAM CAD/CAM programs. The .ONE extension has been iun use since about 1990, the other two were introduced in 2004. .RNT files and .TME files are for rental and timed licensing models.
  • SEMONE (Compressed Archive)SEMONE is an old compression program by V. Semenjuk. This association is classified as Archive. The identifying characters used for this association are - Hex: 53 45 4D 68 29 , ASCII: SEMh)
  • Unknown Apple II File ((found on Golden Orchard Apple II CD Rom))
File Identifier - TrID
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database




Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.

Technical data

To view technical data on file-extension ONE click this link to expand/hide the additional area.

System Info for File Extension .ONE

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: OneNote.Notebook.1, FileType: Microsoft OneNote Notebook file, AppName: Microsoft Office OneNote

ProgramID: OneNote.Section.1, FileType: Microsoft Office OneNote Section, AppName: Microsoft Office OneNote

ProgramID: OneNote.Section.1
EXEFile: %ProgramFiles%\Microsoft Office\OFFICE11\ONENOTE.EXE %1

ProgramID: OneNote.Section.1
EXEFile: %ProgramFiles%\Microsoft Office\OFFICE11\ONENOTE.EXE

ProgramID: OneNote.Section.1
EXEFile: %ProgramFiles%\Microsoft Office\Office12\ONENOTE.EXE


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