# Error importing notes from format: one

**URL:** <https://discourse.joplinapp.org/t/error-importing-notes-from-format-one/48640>\
**Category:** Support\
**Created:** [15 February 2026 00:11 UTC](https://discourse.joplinapp.org/t/error-importing-notes-from-format-one/48640 "2026-02-15T00:11:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![DocZ](https://avatars.discourse-cdn.com/v4/letter/d/3be4f8/32.png) [@DocZ](https://discourse.joplinapp.org/u/DocZ)\
**Post date:** [15 February 2026 00:11 UTC](https://discourse.joplinapp.org/t/error-importing-notes-from-format-one/48640/1 "2026-02-15T00:11:01Z")

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### Operating system

Windows

### Joplin version

3.6.2

### Desktop version info

Joplin 3.6.2 (prod, win32)

Device: win32, Intel(R) Core(TM) i9-14900HX  
Client ID: d7a6675b804045d7a88ab08474c7751b  
Sync Version: 3  
Profile Version: 49  
Keychain Supported: Yes  
Alternative instance ID: -

Revision: c5d9646

Backup: 1.5.1  
Freehand Drawing: 4.3.0

### What issue do you have?

#### Body Trying to import .onepkg and app keeps crashing

- Input format: one
- Output format: md

#### Errors

```auto
Error: failed to fill whole buffer

Location:
    renderer\src\lib.rs:85:23 (near page [None])

```

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<div class="post-metadata">

**Author:** ![LeoW](https://yyz2.discourse-cdn.com/flex028/user_avatar/discourse.joplinapp.org/leow/32/22171_2.png) [@LeoW](https://discourse.joplinapp.org/u/LeoW)\
**Post date:** [15 February 2026 01:07 UTC](https://discourse.joplinapp.org/t/error-importing-notes-from-format-one/48640/2 "2026-02-15T01:07:16Z")

</div>

Am I correct in presuming that these are export files from Microsoft OneNote?

My research suggests that the process is not 100% foolproof.

There is the possibility of having problems importing if notebooks are too large or too complicated or have certain complexities in them that we're not anticipated when creating the import tool.

If it is the import tool that's scanning your data and crashing that is I think more unfortunate than if it could give you the option to skip the error and continue.

I came to Joplin from Evernote and had to deal with certain abnormalities when importing my data. Not 100%.

ANOTHER OPTION

You can try one of these converters.

**onenote2md**

**Jimmy** (cross-platform converter) – Converts many note formats (including OneNote exports) to Markdown.

1. Use an Online Converter (Works on Android Browser)

You can upload your OneNote .one or .onepkg file in a mobile browser and convert it to Markdown online:

**GroupDocs ONE** → MD Converter

A free web-based converter that takes a OneNote file and outputs .md files right from the browser.

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<div class="post-metadata">

**Author:** ![DocZ](https://avatars.discourse-cdn.com/v4/letter/d/3be4f8/32.png) [@DocZ](https://discourse.joplinapp.org/u/DocZ)\
**Post date:** [15 February 2026 15:30 UTC](https://discourse.joplinapp.org/t/error-importing-notes-from-format-one/48640/3 "2026-02-15T15:30:40Z")

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Hi, yes they are export files from OneNote.  
Thanks for your response  
Z

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex028/uploads/cozic/original/3X/1/c/1c948e33314e232a0927789508474d8624f4270b.png) [@system](https://discourse.joplinapp.org/u/system)\
**Post date:** [17 March 2026 15:31 UTC](https://discourse.joplinapp.org/t/error-importing-notes-from-format-one/48640/4 "2026-03-17T15:31:15Z")

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Closed on 17 March 2026 15:31 UTC

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