Feature request: Option to display column letters

[ccidral]

Like in Excel or Google Sheets where it displays letters for each column at the top. Often times my coworkers send me spreadsheets (which I always convert to csv) and ask me things like "look at column Z for this and colum Y for that" and since I don't have Excel I have to upload it to Google Docs just to see which column they're talking about.

So it would be nice to have some option to display column letters above the column headers.

[YS-L]

This is interesting and should be possible. Maybe something like a --spreadsheet option.