Hi there! I completely understand your frustration with the lack of a built-in conversion function for Bytes in Excel. However, there is a way to create a custom function that can do the conversion for you. Here's how:

1. Open a new or existing Excel workbook and press ALT + F11 to open the Visual Basic Editor.
2. In the editor, go to Insert Module to create a new module.
3. In the module, paste the following code:
   
   
   Formula:

   Function ConvertBytes(ByVal bytes As Double) As String
    Select Case bytes
        Case Is <= 1024
            ConvertBytes = bytes & " Bytes"
        Case 1024 To 1048575
            ConvertBytes = Format(bytes / 1024, "#0.00") & " KB"
        Case 1048576 To 1073741823
            ConvertBytes = Format(bytes / 1024 ^ 2, "#0.00") & " MB"
        Case 1073741824 To 1099511627775
            ConvertBytes = Format(bytes / 1024 ^ 3, "#0.00") & " GB"
        Case Is = 1099511627776
            ConvertBytes = Format(bytes / 1024 ^ 4, "#0.00") & " TB"
    End Select
End Function 

4. Save the module and close the editor.
5. Now you can use the function in your worksheet. For example, if you have a file size in Bytes in cell A1, you can use the formula =ConvertBytes(A1) in another cell to get the size in KB, MB, GB, or TB.