Create a Calc document. Put this formula to a cell: =WEEKNUM_EXCEL2003("2025-12-31";1) Check that the result is 53. Save to ODS and reload => the formula is '=WEEKNUM("2025-12-31";1)', and the result is 1.
Reproducible with Versión: 5.4.7.2 Id. de compilación: c838ef25c16710f8838b1faec480ebba495259d0 Subprocs. CPU: 16; SO: Windows 6.2; Repres. IU: predet.; Configuración regional: es-ES (es_ES); Calc: CL Importing with Version 3.6.7.2 (Build ID: e183d5b), Excel WEEKNUM() is imported as WEEKNUM_ADD() and it is preserved, saving as ODS. Maybe the WEEKNUM_ADD was not rename properly in every place toWEEKNUM_EXCEL2003
Version: 5.1.0.0.alpha1+ commit f830600ece806ec365a4839e79afabe183c5e36d tdf#50950 Add ODFF1.2 Calc function ISOWEEKNUM, Even before this commit, other lcm_add and gcd_add are saved as lcm and gcd. Adding CC: Eike Rathke tdf#50950 comment 6 wrote /scaddins/source/analysis/analysishelper.cxx Are UNIQUE and DOUBLE related?