according to the description and sample, Aspose.Cells can handle Apple’s numbers file format.
I have created a file for testing with the latest and current version of Numbers but then an error occurs when opening the file.
Code / File (121.6 KB)
Workbook book = new Workbook("Apple.Numbers"); //Cells Version 18.2.0
"the index.xml could not be found in the numbers file. "