* Unzipped Gnumeric File
A Gnumeric file is normally a gzipped Xml file. However, the Gnumeric application will also read an unzipped Xml file. Allow PhpSpreadsheet to do the same.
* Scrutinizer (legitimate)
Fix minor problem.
Reduce number of Phpstan messages by addressing their issues. Reader/Ods will require a separate ticket. Reader/Xls will require many separate tickets.
oleibman
Adrien Crivelli
MarkBaker