According to Windows 8.1 on my PC the default programme for .XLS files is ‘unknown program’. However, if I click on a .XLS file it tries to open it with a Windows App which fails.
If I right-click on the file and select Open With…the list of options identifies LibreOffice Calc as already being the default program, but if I click on that option it tries to use the Windows App again
If I use the ‘Default Programs’ option of Control Panel to try to set the default program, it lists LibreOffice 4.2 - but if I then select that for .XLS files is says ‘unknown program’!
If I open LibreOffice and use Calc to open the file, then it is fine, but it is a long-winded approach when I want to be able to just click on the filename in File Explorer and go straight in. Any idea how to force Windows to change programme please?
PS: No problem with .DOC files - click the filename and Writer opens!