I\'ve been saving Google Sheets to Excel without any problems for a while. These sheets have always successfully saved and opened in Excel with the importrange function. However
Until this bug is fixed, a workaround is to put a data validation (Data > Data Validation) on the imported data (Any kind of data validation will do).
I'm thinking it's a bug too.
IFERROR(__xludf.DUMMYFUNCTION(...
, then use Excel's UI tools to convert numbers shown as text to numbers.=IFERROR(__xludf.DUMMYFUNCTION(),"value")
except value
(we could use Excel's built-in FIND & REPLACE for this)In order to help to prioritize this issue, send feedback to Google. To do this open a Google Sheets spreadsheet, click on Help > Report a problem, then fill the feedback form and submit it.
I posted 5 small articles about this in Spanish. You could find them listed on https://www.rubenrivera.mx/p/descargar-hcg-excel.html.