From the developer:

"The latest release of TreeSheets ( http://treesheets.com/ ) comes with
all new rendering options, allowing you combine mindmap style trees,
spreadsheet style grids all in a single document in arbitrary
combinations."

Looks like still no collapsing ?

... and yes, the marvellous Wouter has finally added folding to TreeSheets, making it into a truly impressive multidimensional information manager; kind of like the thinking man's mindmapper (sorry, that sounds frightfully pretentious, doesn't it. But let's keep it anyway...).

You'll find Release Candidate 1 here (already very stable, like most of Wouters first releases):

http://treesheets.com/Treesheets_Setup_RC1.exe

To fold a cell containing other cells, you toggle using F10.

Enjoy!
Bill

Looks like there was a new release this summer (Windows file is dated 11 Aug 2013), and also the project has gone open source:

http://strlen.com/treesheets/

Release notes:

2013-06-02:
- TreeSheets is now open source! https://github.com/aardappel/treesheets
- you can now set the background color on a per document basis
- you can now turn off cursor key navigation of in between cell locations
- integrated new wxWidgets 2.9.4, which probably fixed a lot of problems, particularly on OS X (which has now graduated from Alpha to Beta :).
- you can now pick a default font size when you pick a default font. This is a per user setting, not per document, other users will open your documents at their preferred size.
- Edit -> Copy As Continuous Text puts a single line of text merged from any selection into the clipboard. Useful for merging the text of multiple small cells,
or making a paragraph out of many cells for use in another application.
- home/end now move within a line, whereas ctrl+home/end move within the entire text of the cell
- improved rendering of line rendering style and background color picking
- added additional space to cell margins
- hover over wasn't updated during mousewheel scroll
- optimized drag & drop of external files to not scroll/select while dragging
- fixed ALT+F etc. not popping up the File menu
- improved editing of search/replace boxes supporting shift+cursor/home/end etc.
- on Linux, the Fold operation is now SHIFT+F10 instead of F10 to not clash with Ubuntu pre-defined keys.

I downloaded treesheets recently and haven't roadtested it. Thanks for all of the info on this thread.

Simon Bolivar wrote:

I downloaded treesheets recently and haven't roadtested it.

I can highly recommend it. I'm sure it can be used for many different things. I use it as a matrix-form outliner.

E.g. Currently I'm working on an outline in a Freeplane mind map, and I noticed that several branches ended up with information at their ends that was common to all of them, which suggested to me that this information could be better organised in a table.

So I switched to TreeSheets, and by organising the same info in a 9 x 5 table, I was able to develop the ideas further and discover new relationships. It is far easier and faster to do this kind of (brainstorming, idea-development) work in TreeSheets than in Word or Excel.

I also like that cells can be nested within cells, so effectively you can organise your information into boxes within boxes within boxes etc.

Dr Andus wrote:

I can highly recommend it. I'm sure it can be used for many different
things. I use it as a matrix-form outliner.

E.g. Currently I'm working on an outline in a Freeplane mind map, and I
noticed that several branches ended up with information at their ends
that was common to all of them, which suggested to me that this
information could be better organised in a table.

So I switched to TreeSheets, and by organising the same info in a 9 x 5
table, I was able to develop the ideas further and discover new
relationships. It is far easier and faster to do this kind of
(brainstorming, idea-development) work in TreeSheets than in Word or
Excel.

I also like that cells can be nested within cells, so effectively you
can organise your information into boxes within boxes within boxes etc.

Thanks for the suggestions for using treesheets
I use mempad as my plain text outliner, cintanotes now to store highly tagged paragraphs, and treesheets could be my tool to brainstorm ideas beyond just text.

Thank goodness for TreeSheets!

I've been grappling with a tough project management problem for weeks now, needing to map multiple dimensions across and side-by-side each other, and I've tried a whole series of different software, and nothing worked.

Either the software were too fiddly and slow to work with, or have gone into too much detail, or weren't able to give me the one-page Gantt-like overview I needed.

In TreeSheets effectively I created a Gantt chart manually, while ordering multiple parallel projects, and allocating time in blocks of weeks. For some reason the whole process worked a lot more smoothly than if I had used a spreadsheet.

Thanks to the great export options, I was able to export the file to CSV > Excel > Google Sheets, so now I can pin the Gantt chart to my browser's bookmark bar and refer to it daily.

BTW, there seem to be some new versions out there (I have v. Sep 13, 2015) but on GitHub they are even talking about a Jan 23, 2016 release, though I couldn't find where to download it from. The forum (https://groups.google.com/forum/#!forum/treesheets also seems to have regular and recent discussion, so it looks like TreeSheets lives on!

Wouter keeps updating TreeSheets. The Windows download at http://strlen.com/treesheets/ is "Version Mar 26 2017" according to the Help/About menu. You can see the updates history at github.

Dr Andus: your use of TreeSheets for "multiple parallel projects, and allocating time in blocks of weeks" sounds very intriguing. Would you happen to be able to share a screenshot to show how you set this up?

Lately my project management efforts have led me to experimenting with easy gantt tools with some outlining capabilities, such as tomsplanner and smartsheet, but they're not quite right for what I want. Basically, too sparse, like all gantt charts are. Then I remembered TreeSheets, and I'm loving the folding (F10) and text shrinking capabilities. I'm trying to do something like projects as rows and time as columns, but I'm getting stuck trying to keep the time dimensions lined up vertically across projects. Unless I make a column for every single day... hmm, maybe I'll try that.

yosemite wrote:

(...)
Lately my project management efforts have led me to experimenting with easy gantt tools with some outlining capabilities, such as tomsplanner and smartsheet, but they're not quite right for what I want. Basically, too sparse, like all gantt charts are.

(...)

Hi yosemite,

You may want to try InfoQube. It has fine outlining capabilities and powerful Gantt charts. When too sparse, you can flip to Timeline view, which is much more compact. Finally, tasks can also be shown in a good-old Calendar style view.
Details here: http://www.sqlnotes.net/drupal5/index.php?q=node/3886

HTH !

Pierre
IQ Designer
http://www.infoqube.biz

Thanks Pierre. I do follow InfoQube and it's been a while since the last time I tried it. Looks like some interesting new capabilities have been added.

yosemite wrote:

Dr Andus: your use of TreeSheets for "multiple parallel projects, and
allocating time in blocks of weeks" sounds very intriguing. Would you
happen to be able to share a screenshot to show how you set this up?
I'm
trying to do something like projects as rows and time as columns, but
I'm getting stuck trying to keep the time dimensions lined up vertically
across projects. Unless I make a column for every single day...

Here you go: https://drive.google.com/open?id=0Bw4rgHcZnnS-Z1FHQnRzY1VVVzQ

I kept it simple and I have one column per month (as I needed an annual overview), and I indicate the weeks by week no. (1, 2, 3 ,4 or 5 - yup, some months have 5 weeks :).

I have deleted the project names, as they were confidential, but these are mainly academic projects (writing papers, teaching, marking etc.), so you get the idea, and can see the colour coding.

Thank you Dr Andus! That's very helpful.

I'm currently toying with each column being one week, and projects as rows. In each cell I insert (Insert key) the tasks for that project for that week. I can easily add as many as I want in each cell. To focus, I fold (F10) the cells I don't want to see. It's easy to select entire rows or columns and fold / unfold them all. Or shrink the text, I played with that too but so far I'm prefering folding.

Screenshot of made up example:
https://imgur.com/a/YQLgq

In this example, project 4 and week 4 are folded.

yosemite wrote:

In each cell I insert (Insert key) the tasks for that project for
that week. I can easily add as many as I want in each cell. To focus, I
fold (F10) the cells I don't want to see. It's easy to select entire
rows or columns and fold / unfold them all.

That's an interesting approach, I'll give that a try. Thanks for sharing.