I would like to argue that Excel (i.e. spreadsheets) are a form of programming language; albeit in tabular format. Each cell is a variable, some cells are const

I would like to argue that Excel (i.e. spreadsheets) are a form of programming language; albeit in tabular format. Each cell is a variable, some cells are constants, some cells are computed, cells can be conditional, etc. A programming language must not necessary come in form of written text. We can say that concept of spreadsheet is the programming language, and Excel, Google Sheets, etc. are just implementation of the same concept. The success of spreadsheet is in the fact that its visual and intuitive, similar to what made Visual Basic and Delphi very successful.