Excel 2010
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[TD="align: center"]2[/TD]
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[TD="align: center"]3[/TD]
[TD="bgcolor: #FAFAFA"]26.05.18[/TD]
[TD="align: right"]26-May-18[/TD]
[TD="align: center"]4[/TD]
[TD="bgcolor: #FAFAFA"]10.05.18[/TD]
[TD="align: right"]10-May-18[/TD]
[TD="align: center"]5[/TD]
[TD="bgcolor: #FAFAFA"]19.04.18[/TD]
[TD="align: right"]19-Apr-18[/TD]
[TD="align: center"]6[/TD]
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[TD="align: right"][/TD]
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4d
[TABLE="width: 85%"]
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[TD]
Worksheet Formulas[TABLE="width: 100%"]
<thead>[TR="bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]
[TH="width: 10px"]Cell[/TH]
[TH="align: left"]Formula[/TH]
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[TH="width: 10px, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]B3[/TH]
[TD="align: left"]=--SUBSTITUTE(
A3,".","-")[/TD]
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[TR]
[TH="width: 10px, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]B4[/TH]
[TD="align: left"]=--SUBSTITUTE(
A4,".","-")[/TD]
[/TR]
[TR]
[TH="width: 10px, bgcolor: [URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=DAE7F5]#DAE7F5[/URL] "]B5[/TH]
[TD="align: left"]=--SUBSTITUTE(
A5,".","-")[/TD]
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</tbody>[/TABLE]
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</tbody>[/TABLE]
Format to your preference.