Fix an error when pasting from .xls file

[sonmansu]

This fixes #267

this error happens when pasting value from .xls file (.xlsx is fine)

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[gouldingken]

I have the same issue, but I don't see how the commit here fixes the issue. As I understand it, value is undefined, therefore you can't call value.replace at all. A better option might be: ((value?.replace(/[\n\r]+/g, ' ') ?? '').trim() || (null as unknown)) as T,