Open and save attachment 115291 [details] from bug 91061 back to DOCX, then try opening it in Word. => Word fails to open the file cleanly. Observed using LO 25.8.0.0.alpha0+ (736998ccef0bacdd2bbf038c98dacfbe654f1a4d) / Windows. If one: - unzips the saved DOCX, - executes the following command (can be done in Linux/Cygwin, needs xmllint installed): find . -name "*.xml" -type f -exec xmllint --output '{}' --format '{}' \; - rezips the result with .docx extension ...then Word points to line 204 of /word/document.xml, which is the end of an <a:custGeom> element. The element has lots of shape guides/gluepoints. This is a regression from the following commit in 25.8 (and its 25.2 backport): https://git.libreoffice.org/core/commit/86d36ee56521438069504fbacff8dc2aff3a1afc https://cgit.freedesktop.org/libreoffice/core/commit/?id=86d36ee56521438069504fbacff8dc2aff3a1afc author Tibor Nagy <tibor.nagy.extern@allotropia.de> Sun Feb 23 21:35:17 2025 +0100 committer Nagy Tibor <tibor.nagy.extern@allotropia.de> Mon Feb 24 14:22:14 2025 +0100 "tdf165262 PPTX export: fix shape export regression" Those suspicious gluepoints aren't there when exported from a build preceding the regressing commit. Based on basic research, it looks like "logwidth" isn't an allowed formula element for shape guides, eg.: <a:gd name="GluePoint1Y" fmla="3048002*logwidth/6096000"/> List of test files regressing from the same commit: fdo75230-1.docx fdo83227-3.docx forum-mso-en-11007.docx forum-mso-en-12264.docx forum-mso-en-12822.docx forum-mso-en-16347.docx forum-mso-en-16497.docx forum-mso-en-17960.docx forum-mso-en-3360.docx forum-mso-en-4455.docx forum-mso-en-4463.docx forum-mso-en-4464.docx forum-mso-en4-598647.docx forum-mso-en4-746483.docx forum-mso-en4-771610.docx forum-mso-en-5509.docx forum-mso-en-5558.docx forum-mso-en-6088.docx forum-mso-en-970.docx forum-mso-en-974.docx ooo123731-1.docx tdf91061-1.docx
17 PPTX files as well: fdo46987-1.pptx fdo49299-2.pptx forum-mso-de-71272.pptx forum-mso-en-5867.pptx moz1121066-2.pptx moz1121068-2.pptx moz1164516-1.pptx novell742593-1.pptx ooo121597-1.pptx tdf100390-3.pptx tdf106011-1.pptx tdf111857-4.pptx tdf126572-3.pptx tdf59019-6.pptx tdf65724-6.pptx tdf90898-4.pptx tdf92076-2.pptx
And some more. These first started crashing from the regressing commit in the description. The following commit fixed the crash, but the result files are corrupted: https://git.libreoffice.org/core/commit/61e1e38595e95e228168e8385662fe3bcd4c80e1 author Caolán McNamara <caolan.mcnamara@collabora.com> Sun Apr 06 15:34:03 2025 +0100 committer Caolán McNamara <caolan.mcnamara@collabora.com> Sun Apr 06 18:24:16 2025 +0200 crashtesting: out of bounds in export of tdf128404-1.ppt to pptx fdo40483-1.pptx fdo56864-1.pptx forum-mso-de-136104.pptx kde286114-1.pptx kde334850-1.pptx novell347597-1.pptx ooo119582-1.pptx ooo119583-1.pptx ooo119584-1.pptx rhbz615970-1.pptx tdf112868-1.pptx tdf127396-1.pptx tdf128404-1.pptx tdf136754-2.pptx tdf95345-1.pptx
Created attachment 201482 [details] Simple repro case
Created attachment 201483 [details] Simple repro case, after round-trip
Created attachment 201484 [details] Partial repro case
Created attachment 201485 [details] Partial repro case, after round-trip in version before issue
Created attachment 201486 [details] Partial repro case, after round-trip in version with issue
Created attachment 201487 [details] Partial repro case, after round-trip in version after issue partially resolved
I'm having what I believe to be this issue, and figured I should post what I've found in my investigation in case it's at all helpful for y'all to fix this. To reproduce: * Open attachment 201482 [details] in LO * Resave as DOCX: attachment 201483 [details] * Attempt to open in Word Error message: We're sorry. We can't open repro_post_25.2.4.3.docx because we found a problem with its contents. The parameter is incorrect. Location: Part: /word/document.xml, Line: 0, Column: 0 I've reproduced the error in: 25.2.2.2, 25.2.3.2, 25.2.4.3, 25.8.0.0.beta1, and the latest nightly (2025-06-26_05.47.46). This document works without error in 25.2.1.2 In working to reproduce this, I have another doc that failed in 25.2.2.2, but _works_ in 25.2.3.2 * Source doc attachment 201484 [details] * Round trip through 25.2.1.2 (works) attachment 201484 [details] * Round trip through 25.2.2.2 (fails) attachment 201485 [details] * Round trip through 25.2.3.2 (works) attachment 201486 [details] So I believe that this issue was introduced in 25.2.2.2 and was _partially_ resolved in 25.2.3.2, but in part still remains. I'm not sure exactly what the cause is, I tried poking around inside the XML but I'm way over my head there. I did notice that, in the doc that is still failing, there are <a:gd> elements with a formula that starts with +- while in the doc that is now working, all the <a:gd> elements start with */ ... and this seems to be consistent with the documents I've checked from customers reporting issues, all the ones that are still failing contain +- formulas. I couldn't begin to tell you what that means, though, I just hope it's useful info.