No. Excel only supports adding and modifying hierarchical links. To bulk edit links of other types, you can use the following clients:
Use the web portal, to map backlog items to portfolio backlog items which creates parent-child links.
Use either the web portal or Team Explorer, to modify parent-child links by dragging items within a hierarchical backlog page or within a tree query.
::: moniker range "azure-devops"
Use the az boards work-item relation add command.
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