This is a follow up to Bug 51671 which added support for disabling legend entries in XLS and ODF.
Steps to Reproduce:
1. Open XLSX attachment 147392 [details]
2. Compare with XLS attachment 63733 [details]
XLS support was added in https://cgit.freedesktop.org/libreoffice/core/commit/?id=c32a4c2fac32
Moving to New based on bug 51671