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I am not even sure whether it is possible. I would like to change column headings of TableView output to letters such as A, B, C etc instead of 1,2,3. Here is an example: 

RandomVariate[UniformDistribution[{10, 20}], {10, 3}] // TableView

enter image description here

I want the results to look like an excel spreadsheet as follows: enter image description here

Any help is greatly appreciated. Thank you in advance.

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This may not be efficient but could be a good starting point. It works for data up to 26 columns. If you need more columns, you can modify the function. 

    tableView[data_] := Module[{rowheadings, columnheading, output},
      rowheadings = Flatten[{Range[1, Length[data]]}];
      columnheading =Flatten[{"", CharacterRange["A", "Z"][[1 ;; Dimensions[data] 
                     [[2]]]]}];
      output = Prepend[Join[List /@ rowheadings, Map[Style[NumberForm[#, 6]] &, data, {-1}], 2], 
             columnheading];
      Grid[output, Frame -> All, FrameStyle -> GrayLevel[.9],
 Alignment -> {Center, Center}, Background -> {{GrayLevel[.8], None}, {GrayLevel[.8], None}}]
      ]

Here is an example:

data = RandomVariate[UniformDistribution[{10, 20}], {7, 5}];
tableView[data]

enter image description here

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  • $\begingroup$ @ ramesh, it definitely helps. Thank you. $\endgroup$ – DLT Jan 24 '20 at 16:14
  • $\begingroup$ @ DLT, I am glad that it helped you. $\endgroup$ – ramesh Jan 24 '20 at 16:59
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Looking at the options of TableView it seems like it's not possible.

Options[TableView]

{Alignment -> {Automatic, Automatic}, AllowedDimensions -> Automatic, Appearance -> Automatic, AppearanceElements -> All, Background -> Automatic, BaselinePosition -> Automatic, BaseStyle -> {}, ContentPadding -> True, DefaultBaseStyle -> "TableView", Enabled -> Automatic, FieldSize -> {{1., 5.}, {1., 1.}}, FrameMargins -> Automatic, ImageMargins -> Automatic, ImageSize -> Automatic, Scrollbars -> {Automatic, Automatic}, ScrollPosition -> {0., 0.}, Spacings -> Automatic}

Anyway, as I suggested in the comment, the use of TableView is not advised as it causes crashes and is still under development.

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