XSLX Import partially fails on Windows
The problem is while manual import of XSLX files is no worries, it partially fails when the placement is called from script on Windows.
The main issue is that sheetName property seems to be ignored leading to the first sheet always being placed no matter which sheetName has been set.
The expected behaviour is that the sheetName set in app.excelImportPreferences.sheetname is correctly placed.
No problem with old xls format or with xlsx on mac.
Thanks for reporting the issue. We are reviewing it