Bug 169487 - FILESAVE: PPT->PPTX invalid value in a:ext
Summary: FILESAVE: PPT->PPTX invalid value in a:ext
Status: RESOLVED FIXED
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
26.2.0.0 alpha0+ master
Hardware: All All
: medium normal
Assignee: Karthik
URL:
Whiteboard: target:26.2.0 target:25.8.4
Keywords:
Depends on:
Blocks: PPTX-Corrupted
  Show dependency treegraph
 
Reported: 2025-11-17 09:57 UTC by Karthik
Modified: 2025-12-03 13:31 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:


Attachments
PPT File (60.00 KB, application/vnd.ms-powerpoint)
2025-11-17 09:58 UTC, Karthik
Details

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Description Karthik 2025-11-17 09:57:27 UTC
Description:
Open the attached file and save as PPTX, the resulting file can't be opened in PowerPoint.

OOXML validator gives the below error:
```
{
  "Description": " The MaxInclusive constraint failed. The value must be less than or equal to 2147483647.",
  "Path": {
    "Namespaces": {},
    "XPath": "/p:sldLayout[1]/p:cSld[1]/p:spTree[1]/p:grpSp[1]/p:sp[2]/p:spPr[1]/a:xfrm[1]/a:ext[1]",
    "PartUri": "/ppt/slideLayouts/slideLayout1.xml"
  },
  "Id": "Sch_AttributeValueDataTypeDetailed",
  "ErrorType": "Schema"
}
```

Steps to Reproduce:
1. Open the file in LO
2. Save as PPTX
3. Open the resulting in PowerPoint

Actual Results:
PowerPoint can't open the file

Expected Results:
PowerPoint opens the file without any problem


Reproducible: Always


User Profile Reset: Yes

Additional Info:
Version: 26.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: a73bbbcb9b7b57197a2e5ad197f4953c4389ef6a
CPU threads: 22; OS: Linux 6.12; UI render: default; VCL: gtk3
Locale: en-IN (en_IN); UI: en-US
Calc: threaded
Comment 1 Karthik 2025-11-17 09:58:08 UTC
Created attachment 204038 [details]
PPT File
Comment 2 Commit Notification 2025-11-20 15:02:42 UTC
Karthik Godha committed a patch related to this issue.
It has been pushed to "master":

https://git.libreoffice.org/core/commit/9dea9ed0a1d12474b120471f709d20035a8266d5

tdf#169487: PPT->PPTX Fix export of a:ext

It will be available in 26.2.0.

The patch should be included in the daily builds available at
https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
https://wiki.documentfoundation.org/Testing_Daily_Builds

Affected users are encouraged to test the fix and report feedback.
Comment 3 Commit Notification 2025-11-24 09:06:11 UTC
Karthik Godha committed a patch related to this issue.
It has been pushed to "libreoffice-25-8":

https://git.libreoffice.org/core/commit/59a62908e78833efefcf3b61cdcac1ad6bb1acef

tdf#169487: PPT->PPTX Fix export of a:ext

It will be available in 25.8.4.

The patch should be included in the daily builds available at
https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
https://wiki.documentfoundation.org/Testing_Daily_Builds

Affected users are encouraged to test the fix and report feedback.