https://bugs.documentfoundation.org/show_bug.cgi?id=173384
Bug ID: 173384
Summary: FILESAVE MSO formats: MS Office complains about
corrupt after LO round-trips a file
Product: LibreOffice
Version: 27.2.0.0 alpha0+ master
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: bibisected, regression
Severity: major
Priority: highest
Component: LibreOffice
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Blocks: 104787
MS Powerpoint 2024 complains about a corrupt file after LO 27.2 round-trips
'Contoso-Presentation-pg2.pptx' (attachment 83059 from bug 84205)
Apparently it doesn't like PNG files. (The original document used a jpeg)
We also can't round-trip any DOCX or XLSX files either.
Steps to reproduce:
-open Contoso-Presentation-pg2.pptx in LO
-save it
-try to open it in MS Office - it open after a couple of complaining dialogs.
This started in LO 27.2 with commit 0a03f797bbd8088ee3b6b42ee8b8e32fcb6934fd
Author: Ramil Nurmanov on Mon Aug 24 09:32:03 2026 +0200
tdf#173164 oox: Export document thumbnail when saving OOXML
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/209306
Referenced Bugs:
https://bugs.documentfoundation.org/show_bug.cgi?id=104787
[Bug 104787] [META] Saved PPTX files that MS Powerpoint can't open
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