Excel too?

lolive, VisiData has some Excel support. However, don't expect VisiData to be a full blown editor for Excel files. It can provide a view of the data in an Excel spreadsheet.

I think GP means to ask if Excel can read files with ASCII 29,30,31 separators.

If you have a python installation available, openpyxl[1] is great both for converting to .csv and for packaging .csv outputs as .xlsx (which is really zipped .xml, anyway).

[1] https://openpyxl.readthedocs.io/en/stable/index.html