2.2.15.2 Timeline View
A Timeline view specifies the display of a Timeline on a worksheet. The Timeline view is specified by a CT_Timeline ([MS-XLSX] section 2.6.111) element.
Each Timeline view is associated with a Timeline cache as specified in Timeline View Relationship to Timeline Cache. The filtering state of Timeline displayed in the Timeline view is specified by the associated Timeline cache.
Each Timeline view is associated with a drawing ([ISO/IEC29500-1:2016] section 20.5), contained in the Drawings part ([ISO/IEC29500-1:2016] section 12.3.8).