Merge branch 'main' of github.com:ninmonkey/Ninmonkey.PowerQueryLib

Author: ninmonkey

source-excel/GetAbsoluteWorkbookPath.md

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+This parses `cell()` output to get the **absolute filepath of the current workbook**
+This is one way you can have powerquery autodetect absolute filepaths
+```
+= Cell( "filename" )
+```
+The raw output
+```
+c:\data\excel\[Example Sales Table.xlsx]Sheet2
+```
+Note: You could drop the worksheet name, then replace `[]` with `''`. 
+I split this into steps to show how you can use intermediate calculations as variables
+without polluting the scope using named cells 
+
+```sql
+= LET(
+  rawName, CELL("filename"),
+
+  folder,
+    TEXTBEFORE( rawName, "[", 1 ),
+
+  file,
+    TEXTBEFORE(
+      TEXTAFTER( rawName, "[", 1 ),
+      "]", -1
+    ),
+
+  fullName,
+    CONCAT(folder, file),
+
+fullName )
+```
+Our final output:
+```
+c:\data\excel\Example Sales Table.xlsx
+```

source/Xml/Table.AutoExpandTableColumn.pq

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+
+// Someone asked for a way to auto expand xml columns
+// hard coded example filter
+Table.AutoExpandTableColumn = (source as table, columnName as text ) => 
+    let 
+        allNames = Table.ColumnNames( source ),        
+        filteredNames = List.Select( allNames, (item) => 
+            not Text.StartsWith( item, "http://", Comparer.OrdinalIgnoreCase ) ),
+
+        prefixedNames = List.Transform( filteredNames, each expandColumnName & "." & _ ),            
+        return = Table.ExpandTableColumn( source, columnName, filteredNames, prefixedNames )
+    in 
+        return,