I'm looking for a Windows (not web based) outliner, ideally 1 pane, that handles OPML files (the outline markup language) natively, either using it itself, or importing AND exporting in it. Except for one product which appears to be abandonware (the OPML Editor from opml.org), I can't find one. I've find some that do parts (e.g., one can export opml, but can't import it, while another uses a python program to convert OPML into it's native format).

I'm sure one must exist. Can someone recommend one?

I strongly recommend Notecase Pro http://www.virtual-sky.com/index.php discussed here in the past under various occasions. It works on Windows, Linux and Mac (and an Android version is on the works), is constantly developed and well supported.

Notecase Pro can import and export a multitude of formats including .OPML which it handles very well. I have used in the past extensively along with the Symbian Projekt outliner in my smartphone and it worked wonderfully. I now combine it with the web service checkvist.com which can also import and export OPML.

One note: OPML is a fairly simple XML format, and some programs will add to it more data than it natively supports. Notecase and most programs will ignore the additional data when importing (and will NOT save it back when exporting). If you want to play around with some enriched version of OPML and maintain the additional data, you should try out TreeLine.

I would suggest taking a look at InfoQube if you haven't. It does import OPML. While I couldn't find an export option, I find it hard to believe it can't be done, because Pierre has added so many thoughtful features. Here's the link:

http://www.infoqube.biz/

Steve Z.

Natara Bonsai 5 Desktop Edition has lots of import and export options, including OPML:
http://www.natara.com/Bonsai/Download.cfm
http://www.natara.com/Bonsai/ScreenShots.cfm

Gary Furash wrote:

Except for one product which appears to be abandonware (the OPML
Editor from opml.org), I can't find one.

I'm not sure that 'abandonware' is a fair description. I just downloaded the editor from opml.org and some of its core files were modified in October 2011.

Can you please direct me / help me with some tips for opening outlines created and saved using Notecase Pro (V3.5.7) in Symbian Projekt (V1.27) on my Nokia N8. Transferring outlines created using ceckvist.com also appeals, but I have not been able to find a way of saving files in .opml format - is a plugin needed?
Many thanks, Neil Clarke

Alexander Deliyannis wrote:

I strongly recommend Notecase Pro http://www.virtual-sky.com/index.php
discussed here in the past under various occasions. It works on Windows, Linux and Mac
(and an Android version is on the works), is constantly developed and well
supported.

Notecase Pro can import and export a multitude of formats including
.OPML which it handles very well. I have used in the past extensively along with the
Symbian Projekt outliner in my smartphone and it worked wonderfully. I now combine it
with the web service checkvist.com which can also import and export OPML.

One note:
OPML is a fairly simple XML format, and some programs will add to it more data than it
natively supports. Notecase and most programs will ignore the additional data when
importing (and will NOT save it back when exporting). If you want to play around with
some enriched version of OPML and maintain the additional data, you should try out
TreeLine.

I was fiddling around last week with CarbonFin Outline for the iPad, and found that I could export to OPML, then read it into tkoutline (http://tkoutline.sourceforge.net/scm/wiki?name=Tkoutline I run tkoutline on both Windows and Linux. While not really a full featured outliner, it is just a remarkably handy, and free tool that I keep coming back to to manage all kinds of daily tasks. Anyhow, tkoutline is a single pane outliner that imports text and OPML, and exports not only to those two, but to XML, HTML, and even some email formats (haven't tried that last).

Owlgrange wrote:

Can you please direct me / help me with some tips for opening outlines created and saved
using Notecase Pro (V3.5.7) in Symbian Projekt (V1.27) on my Nokia N8.

I've been on Android for a couple of years now and don't have access to my Symbian phone anymore, so my memory of the procedure in the phone is rather imperfect, but here goes:

1. Open your document in Notecase Pro and select File / Export; the default is Current Brach, but you can select Entire Document. For the file format select OPML Document.
2. You will need to get the file to the Symbian phone; I don' t recall what app I use, but I expect something like Sugarsync should work; there are also some ways of usein Dropbox with Symbian. I don't suggest that you mail the file, because then it will be cumbersome to keep in sync after changes.
3. In Projekt, there should be an Import function accepting .OPML files

Thereon, you may realise the limitations of the .OPML format; it's good for plain outlines, but not much more.

Transferring
outlines created using ceckvist.com also appeals, but I have not been able to find a
way of saving files in .opml format - is a plugin needed?

No plugin needed; there is an Export function at the Checkvist top menu. However, this may be not accessible from the mobile version of Checkvist; you should open it in a desktop browser.

Alexander Deliyannis wrote:

I've been on Android for a couple of years now and don't have access to
my Symbian phone anymore, so my memory of the procedure in the phone is rather
imperfect, but here goes:

Thanks for your help Alexander,
With care and perseverance I have made some progress.
I have managed to shift a simple file (just 6 tasks and a couple of notes) from my Nokia (Projekt) to either Notecase or Checkvist on my PC, when Projekt's output is specified as an opml file (V 1).
Going to other way has been less straight forward. Have had to change file extensions from .xml to .opml to get acceptance by Projekt, and some notes seem to end up as tasks from Notecase (or all do in the case of Checkvist). Seems to relate to your comment below and maybe also to a difference between V1 & V2 opml file codings:

Thereon, you may realise
the limitations of the .OPML format; it's good for plain outlines, but not much
more.

Have not given up trying yet, but may end up just using Checkvist now that a Nokia firmware update has at last given me a "half-decent" browser.

Many thanks for you encouragement.

Neil Clarke

Further to my last post, I found some useful tips at:
http://www.kylom.com/?p=296

However using these approaches, porting files is still not as straighforward as I would like. They do nevertheless give some options of opening and viewing .xml files saved from checkvist.com. The main issue that has been "dogging" me is losing notes embedded in outlined task headings (they come through as extra tasks). Shall probably drop this as a goal since embedded notes are a bit fiddly to open in Projekt on my N8 anyway.

So for now will stick to editing/updating using checkvist.com on my laptop; saving as .xml files (local backups); and importing these for viewing (without embedded notes) on my Nokia (after changing from .xml to .opml) - they can be opened in this way on my PC (using Notecase Pro) and copy/pasted (imported) back into checkvist if necessary as well.

Cheers, Neil