GoKawiilMicrosoft tests Excel feature allowing multiple values per cell
Microsoft is piloting an Excel update that lets a single cell hold lists and arrays instead of just one value, breaking from the spreadsheet's traditional one-cell, one-value design. The feature is available to Microsoft 365 Insiders in the Excel Beta Channel on Windows and Mac, letting users create lists via Insert > List or Ctrl+J, and reference or filter individual items within them using formulas.