https://bugs.documentfoundation.org/show_bug.cgi?id=158827
--- Comment #2 from Mike Kaganski <mikekagan...@hotmail.com> --- What steps specifically don't work? E.g., setting some cell borders to thick, and some to thin definitely works with XLSX in Version: 7.6.4.1 (X86_64) / LibreOffice Community Build ID: e19e193f88cd6c0525a17fb7a176ed8e6a3e2aa1 CPU threads: 24; OS: Windows 10.0 Build 22631; UI render: Skia/Vulkan; VCL: win Locale: ru-RU (en_US); UI: en-US Calc: CL threaded So please describe specific steps, or maybe just attach a sample ODS, which can't be saved to XLSX without formatting loss, and describe which cell looses what. Note that Excel formats are limited in what border formatting they can store. E.g., border thickness is represented there as a limited set of values, defined in OOXML's ST_BorderStyle (valid values are only 'dashDot', 'dashDotDot', 'dashed', 'dotted', 'double', 'hair', 'medium', 'mediumDashDot', 'mediumDashDotDot', 'mediumDashed', 'none', 'slantDashDot', 'thick', 'thin'). You may see that it's not much of freedom to represent different thickness plus different style - which is easy in ODF. So possibly what you expect is simply impossible in the limited XLSX file format. -- You are receiving this mail because: You are the assignee for the bug.