2.2.15.2.1 Timeline View Relationship to Timeline Cache
Each Timeline view is associated with a Timeline cache. The Timeline view is associated with Timeline cache through the name attribute of the CT_TimelineCacheDefinition ([MS-XLSX] section 2.6.112) element in the Timeline cache that matches the cache attribute of the CT_Timeline ([MS-XLSX] section 2.6.111) element that specifies this Timeline view.
There can be multiple Timeline views associated with a single Timeline cache, providing a mechanism for displaying the filter state in more than one location in the workbook.