Sub ИзвлечьАббревиатуры()

    Dim oDoc_Source As Document
    Dim oDoc_Target As Document
    Dim strListSep As String
    Dim strAcronym As String
    Dim oTable As Table
    Dim oRange As Range
    Dim n As Long
    Dim strAllFound As String
    Dim Title As String
    Dim Msg As String
    Dim oCC As ContentControl

    Title = "Извлечение аббревиатур из документа"
    
    'Show msg - stop if user does not click Yes
    Msg = "Этот макрос находит все слова, состоящие из 2 или более " & _
        "заглавных букв и извлекает эти слова в таблицу " & _
        "в новом документе, где Вы можете добавить определения." & vbCr & vbCr & _
        "Вы хотите продолжить?"

    If MsgBox(Msg, vbYesNo + vbQuestion, Title) <> vbYes Then
        Exit Sub
    End If
    
    Application.ScreenUpdating = False
    
    'Find the list separator from international settings
    'May be a comma or semicolon depending on the country
    strListSep = Application.International(wdListSeparator)
    
    'Start a string to be used for storing names of acronyms found
    strAllFound = "#"
    
    Set oDoc_Source = ActiveDocument
    
    'Create new document for acronyms
    Set oDoc_Target = Documents.Add
    
    With oDoc_Target
        'Make sure document is empty
        .Range = ""
    
        'Insert info in header - change date format as you wish
        .PageSetup.TopMargin = CentimetersToPoints(3)
        .Sections(1).Headers(wdHeaderFooterPrimary).Range.Text = _
            "Список сокращений составлен из файла: " & oDoc_Source.FullName & vbCr & _
            "Составил: " & Application.UserName & vbCr & _
            "Дата составления: " & Format(Date, "MMMM d, yyyy")
                
        'Adjust the Normal style and Header style
        With .Styles(wdStyleNormal)
            .Font.Name = "Arial"
            .Font.Size = 12
            .ParagraphFormat.LeftIndent = 0
            .ParagraphFormat.SpaceAfter = 6
        End With
    
        With .Styles(wdStyleHeader)
            .Font.Size = 8
            .ParagraphFormat.SpaceAfter = 0
        End With
        
        'Insert a table with room for acronym and definition
        Set oTable = .Tables.Add(Range:=.Range, numrows:=2, NumColumns:=3)
        With oTable
            'Format the table a bit
            'Insert headings
            .Range.Style = wdStyleNormal
            .AllowAutoFit = False
            
            .Cell(1, 1).Range.Text = "Аббревиатура"
            .Cell(1, 2).Range.Text = "Обозначение"
            .Cell(1, 3).Range.Text = "Страница"
            'Set row as heading row
            .Rows(1).HeadingFormat = True
            .Rows(1).Range.Font.Bold = True
            .PreferredWidthType = wdPreferredWidthPercent
            .Columns(1).PreferredWidth = 20
            .Columns(2).PreferredWidth = 65
            .Columns(3).PreferredWidth = 15
        End With
    End With
    
    With oDoc_Source
        Set oRange = .Range
        
        n = 1 'used to count below
        
        With oRange.Find
            'Use wildcard search to find strings consisting of 3 or more uppercase letters
            'Set the search conditions
            'NOTE: If you want to find acronyms with e.g. 2 or more letters,
            'change 3 to 2 in the line below
            .Text = "<[А-ЯЁ;A-Z]{2" & strListSep & "}>"
            .Forward = True
            .Wrap = wdFindStop
            .Format = False
            .MatchCase = True
            .MatchWildcards = True
            
            'Perform the search
            Do While .Execute
                'Skip content controls with placeholder text
                If oRange.Information(wdInContentControl) = True Then
                    Set oCC = oRange.ParentContentControl
                    If oCC.ShowingPlaceholderText = True Then
                        oRange.End = oCC.Range.End + 1
                        oRange.Collapse wdCollapseEnd
                        GoTo SkipCC
                    End If
                End If
                
                'Continue while found
                strAcronym = oRange.Text
                'Insert in target doc
                
                'If strAcronym is already in strAllFound, do not add again
                If InStr(1, strAllFound, "#" & strAcronym & "#") = 0 Then
                    'Add new row in table from second acronym
                    If n > 1 Then oTable.Rows.Add
                    'Was not found before
                    strAllFound = strAllFound & strAcronym & "#"
                    
                    'Insert in column 1 in oTable
                    'Compensate for heading row
                    With oTable
                        .Cell(n + 1, 1).Range.Text = strAcronym
                        'Insert page number in column 3
                        .Cell(n + 1, 3).Range.Text = oRange.Information(wdActiveEndPageNumber)
                    End With
                    
                    n = n + 1
                End If
SkipCC:
            Loop
        End With
    End With
    
    'Sort the acronyms alphabetically - skip if only 1 found
    If n > 2 Then
        With Selection
            .Sort ExcludeHeader:=True, FieldNumber:="Column 1", SortFieldType _
                :=wdSortFieldAlphanumeric, SortOrder:=wdSortOrderAscending
            
            'Go to start of document
            .HomeKey (wdStory)
        End With
    End If
        
    Application.ScreenUpdating = True
    
    'If no acronyms found, show msg and close new document without saving
    'Else keep open
    If n = 1 Then
        Msg = "No acronyms found."
        oDoc_Target.Close savechanges:=wdDoNotSaveChanges
    Else
        Msg = "Finished extracting " & n - 1 & " acronymn(s) to a new document."
    End If
    
    MsgBox Msg, vbOKOnly, Title
    
    'Clean up
    Set oRange = Nothing
    Set oDoc_Source = Nothing
    Set oDoc_Target = Nothing
    Set oTable = Nothing
    Set oCC = Nothing
    
End Sub

Private Sub Worksheet_Change(ByVal Target As Range)
    If Target.Cells.Count = "" Then Exit Sub
    If Not Intersect(Target, Range("B3")) Is Nothing Then
    Range("B2:B4").Select
    Selection.ClearContents
    End If
End Sub

Selection.ClearContents