Calc 7.4.3.2 - not open xls-xml but 7.4.2.3 opens

Hello,
my first post here (please excuse my English :slight_smile:

I installed new Libre with Calc 7.4.3.2 (x64) on new machine (Win 10) and suprisingly this version doesn’t open xls with this:

<?xml version="1.0" encoding="UTF-8"?>
<?mso-application progid="Excel.Sheet"?>

<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40">
	<DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">

instead treating like text.

I know that on my old laptop with Calc 7.4.2.3 (x64) (Win 10 too) this file opens ok, so installed on new and of course it opens like normal sheet.

Maybe this will be helping for someone.

Please submit a bug, attach a failing sample file to the bug, and report back the bug number here in the tdf#123456 form.

Reminds me of the following thread, but this depends on the content after the xml-header: