Is there a convenient way to check which worksheets have changed when comparing excel files with TortoiseSVN?

Show changes of a commit in svn log:

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As you can see, the cells with changes are indeed marked red — but THAT’S ALL.
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There are 2 problems:

  1. if the workbook has multiple worksheets, you have to traverse all worksheets because you don’t know exactly which worksheets have been changed.
  2. if a worksheet has many rows (or many columns), you need to drag a long scroll bar to look for cells with changes.

What I have tried:

  1. I did some google, many people say to use SPREADSHEETCOMPARE.exe, but I found that the latest version of Office has removed this feature.

  2. I tried to modify the script that svn uses to handle excel compare:

    mouse right click menu > TortoiseSVN > Settings > Diff Viewer > Advanced

    .xlsx => wscript.exe “D:Program FilesTortoiseSVNDiff-Scriptsdiff-xls.js” %base %mine //E:javascript

var used_range_base = objBaseWorksheet.UsedRange;
var n_row_new = used_range_new.Rows.Count;
var n_col_new = used_range_new.Columns.Count;

var any_cell_diff = false;
                
for (var row = 1; row <= n_row_new; row++) {
  for (var col = 1; col <= n_col_new; col++) {
    if (used_range_new.Cells(row, col).value2 !== used_range_base.Cells(row, col).value2) {
      objNewWorksheet.Tab.ColorIndex = 7; // if any cell changed, mark the sheet's tab
      any_cell_diff = true;
      break;
    }
  }
    
  if (any_cell_diff) {
    break;
  }
}

This will indeed mark the modified worksheets:
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BUT — I don’t know why, this algorithm is extremly slow…

So, finally my question is:

  1. Is there any efficient way to check if 2 worksheets have any difference?
  2. Is there a way to mark all the changed cells in a sheet ?(like marking the color line on the scroll bar)
    enter image description here