Re: [libreoffice-users] ppt conversion

On 31/05/2026 13:24, Robert Funnell wrote:
> Mike -
>
> I don't actually know the answer to your question but, since the .odp 
> format is fully open and documented, and the .ppt* formats are not, it 
> might work better to have PowerPoint open a .odp file rather than have 
> Impress try to save a .ppt* file.

Good point - this particular presentation I made, and passed to a 
school-of-MS type for the display. I asked him to restore the 
transitions: the copy I got back had a very blocky effect :-{

sidetrack:
As it happened, the presentation couldn't be used anyway. He put the 
.ppt on his laptop, plugged in the projector, and every slide was 
clipped top and bottom. The projector though was simply doubling his 
lappy screen - which was correct! An older slideshow (again I'd made a 
ppt for his kit) worked fine. Weird.

I guess that's not a good topic for this list. But the lesson is 
salutary - don't assume it's going to work even if it did last time, and 
leave space for fixups.
:-{

> https://support.microsoft.com/en-us/office/use-powerpoint-to-save-or- 
> open-a-presentation-in-the-opendocument-presentation-odp- 
> format-94805e84-1b09-4c98-a8b5-0da2a52242a0 has a table that 'shows 

Thanks for that. I have wondered what extra MS users get for their 
money. I can manage without :-}


> which PowerPoint features are fully, partially, or not at all supported 
> in the OpenDocument Presentation (.odp) format'. In particular, for 
> Entrance/Exit animations it says 'Partially supported': 'Animations that 
> can't be supported by ODF are changed to an Appear or Disappear 
> animation'. This doesn't seem to be directly related to your issue, 
> since clearly your transition was working with a .odp file, but it does 
> suggest problems with at least some transitions.
>
> - Robert
>
> On 2026-05-31 02:14, Mike Scott wrote:
> > Hi all - I had an odp file with dissolve transitions between slides. 
> > On conversion to ppt (x?) the transitions were replaced with a 
> > straight cut from one to the next.
> >
> > Is this expected? Is the problem in the conversion? Or is there a way 
> > to make sure this doesn't happen?
> >
> > Thanks.


--
Mike Scott
Harlow, Essex, England

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