How to parse Excel cell merging information？

[openXu]

Hello, how do I read cell merge information when parsing an Excel file? I saw that there is a merge() method in the Sheet that can merge cells when creating Excel, but I couldn't find a way to read the merge information

[Gaurav-pix]

I'm getting merged cells data using getMergedCells()
var mergeData = excel.getMergedCells(sheetName);