Format date for export to Excel

Hi. I export data from datatable (several columns, one column is date). in datatable - var format = webix.Date.dateToStr ("% d.% m.% Y"); Result - 05.25.19. Before export to Excel in this column - exportType: “date”, exportFormat: “d-mmm-yy”. Result in Excel - the date is incorrect - 11июл05 what am i doing wrong?

Hello,

I have tested the issue, but everything works correctly
Could you please send a snippet with a problematic code?