We were working under the assumption that XLSX's inline strings only had a single value node (`<t>`). This is incorrect. To get the actual value of an inline string node, we need to concatenate the value of all its child nodes.
We were working under the assumption that XLSX's inline strings only had a single value node (`<t>`). This is incorrect. To get the actual value of an inline string node, we need to concatenate the value of all its child nodes.