ref: /help/source/text/shared/optionen/01130200.xhp On Tools > Options > Load/Save > Microsoft Office there is a Lock files area that contains a Create MSO lock file checkbox. This checkbox is not mentioned in the referenced Help page and probably should be. Bug 90678 contains background information about the purpose of this option.
While touching at this file please change the term "Character background" to "Character highlighting" to be consistent to the user interface.
Some more issues with this page 1) the term "Listbox" is wrong WRT the user interface. My suggestion is to use <h2 ...> [L] and [S] columns</h2> <paragraph ...>The [L] and [S] columns displays the entries (...) 2) the term "and reverse" in the user interface is unclear. Either drop the term in UI or explain in the pages. 3) This page is not restricted to Microsoft since there is PDF conversion in the pack. The top introduction paragraph should mention it. A specific paragraph on PDF conversion should also pinpoint the feature.
Olivier Hallot committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/help/commit/e1867b2cfa96b646f9692855897166f5732ca087 tdf#133116 add lock file info in MSO OLE page
Olivier Hallot committed a patch related to this issue. It has been pushed to "libreoffice-7-0": https://git.libreoffice.org/help/commit/f3ec86d25ac59b19701483818387ed3934fa10d7 tdf#133116 add lock file info in MSO OLE page