excel idea: add --cell option

[ondohotola]

I had recently the need to extract data by cell reference and had to use something like --range C3:C3.

I wonder now if it was possible to add something like --cell C3 for (pure) convenience?

If it's too much effort, the --range works perfectly well.

[jqnatividad]

The --cell option is actually quite convenient :)

#3133

[ondohotola]

kuul!

[jqnatividad]

Done with #3133