$url='https://storage.live.com/items/A78ACCAEBB24EDD7!37945?&authkey=!APfFKTYtceWCfG0'
$g='./xmltest'
$reg='pN|utf'
((irm $URL) -split "[`r`n]+") -match $reg
irm $URL -outfile $g
(get-content   $g)-match $reg

PS /sh> irm $URL

xml                            Folder
---                            ------
version="1.0" encoding="utf-8" Folder

PS /sh> (irm $URL).Folder.Items.Document

ItemType ResourceID             RelationshipName
-------- ----------             ----------------
Document A78ACCAEBB24EDD7!37948 测试.json

PS /sh> (iwr $URL).Headers.'Content-Type'
text/xml
PS /sh> ((irm $URL) -split "[`r`n]+") -match $reg
<?xml version="1.0" encoding="utf-8"?>
      <RelationshipName>æµè¯.json</RelationshipName>
  <RelationshipName>BingClients</RelationshipName>

PS /s> (get-content  ../aa/irm )-match 'pN|utf'
 <?xml version="1.0" encoding="utf-8"?>
<RelationshipName>测试.json</RelationshipName>
<RelationshipName>BingClients</RelationshipName>
PS /sdcard/Documents/sh>

PS /sdcard/Documents/sh> ((curl $URL) -split "[`r`n]+") -match $reg
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2693  100  2693    0     0   2170      0  0:00:01  0:00:01 --:--:--  2170
<?xml version="1.0" encoding="utf-8"?>
      <RelationshipName>测试.json</RelationshipName>
  <RelationshipName>BingClients</RelationshipName>