When converting between « ods » and « fods » formats with the command-line « libreoffice --convert-to <fods|ods> <filename> », the value of tag « table:number-columns-repeated » is decreased by 960 for hidden columns. Probably in other versions too as many updates occur since first time. Probably not OS dependent.
Please attach a sample file, reduce the size as much as possible without private information, and paste the information in Menu/Help/About LibreOffice, there is a copy icon.
Not reproduced with: Version: 24.2.2.2 (X86_64) / LibreOffice Community Build ID: d56cc158d8a96260b836f100ef4b4ef25d6f1a01 CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3 Locale: en-AU (en_AU.UTF-8); UI: en-US Calc: CL threaded Tried converting an ODS with column B hidden to ODS and to FODS: both still have column B hidden. Can you please test a currently maintained version, 7.6 or 24.2?