review requested: [Bug 124065] [Performance] Low performance opening attached .ods : [Attachment 82330] Fix

[bugzilla]

wujinl...@gmail.com has asked  for review:
Bug 124065: [Performance] Low performance opening attached .ods
https://issues.apache.org/ooo/show_bug.cgi?id=124065

Attachment 82330: Fix
https://issues.apache.org/ooo/attachment.cgi?id=82330&action=edit