Removing all text except certain characters

Hello Anonymous 

you can use a combination of Text.PositionOf and Text.Middle. Adding a try otherwise enablse to identifying those rows that don't contain any MA-****

let
	Source = #table
	(
		{"FreeTextColumn"},
		{
			{"xxasdfMA-1450…sdf"},	{"sssktest MA-1111"},	{"kkMA-11558888884"},	{"88oeoeMA-15444"}
		}
	),

	AddColumn = Table.AddColumn
	(
		Source,
		"extract MA",
		(add)=> try
		Text.Middle
		(
			add[FreeTextColumn],
			Text.PositionOf(add[FreeTextColumn], "MA-"),
			7
		)
		otherwise 
		"contains NO MA-"
	)
in
	AddColumn

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Kudoes are nice too

Have fun

Jimmy

Hello Anonymous 

have you been able to solve the problem with the replies given?

If so, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
Kudoes are nice too

All the best

Jimmy

You can add a column with this formula, then remove the original column, and presumably filter out the rows that return null.

if Text.Contains([Column1],"MA-") = true 
then Text.Middle([Column1],Text.PositionOf([Column1],"MA-"),7)
else null