1 Attachment(s)
PQ - UnZip an use Content in Power Query
UnZip an use Content in Power Query
it works for local files but not from web/url (at least I failed)
Code:
(ZIPFile) =>
let
Header = BinaryFormat.Record([
MiscHeader = BinaryFormat.Binary(14),
BinarySize = BinaryFormat.ByteOrder(BinaryFormat.UnsignedInteger32, ByteOrder.LittleEndian),
FileSize = BinaryFormat.ByteOrder(BinaryFormat.UnsignedInteger32, ByteOrder.LittleEndian),
FileNameLen= BinaryFormat.ByteOrder(BinaryFormat.UnsignedInteger16, ByteOrder.LittleEndian),
ExtrasLen = BinaryFormat.ByteOrder(BinaryFormat.UnsignedInteger16, ByteOrder.LittleEndian)
]),
HeaderChoice = BinaryFormat.Choice(
BinaryFormat.ByteOrder(BinaryFormat.UnsignedInteger32, ByteOrder.LittleEndian),
each if _ <> 67324752 // not the IsValid number? then return a dummy formatter
then BinaryFormat.Record([IsValid = false, Filename=null, Content=null])
else BinaryFormat.Choice(
BinaryFormat.Binary(26), // Header payload - 14+4+4+2+2
each BinaryFormat.Record([
IsValid = true,
Filename = BinaryFormat.Text(Header(_)[FileNameLen]),
Extras = BinaryFormat.Text(Header(_)[ExtrasLen]),
Content = BinaryFormat.Transform(
BinaryFormat.Binary(Header(_)[BinarySize]),
(x) => try Binary.Buffer(Binary.Decompress(x, Compression.Deflate)) otherwise null
)
]),
type binary // enable streaming
)
),
ZipFormat = BinaryFormat.List(HeaderChoice, each _[IsValid] = true),
Entries = List.Transform(
List.RemoveLastN( ZipFormat(ZIPFile), 1),
(e) => [FileName = e[Filename], Content = e[Content] ]
)
in
Table.FromRecords(Entries)
create function from code above, rename to UnzipContents
then create Query with code:
Code:
let
Source = File.Contents("full path to your zip file"),
Files = UnzipContents(Source)
in
Files
use gear on the right side of Source step to choose a zip file
https://i.postimg.cc/xjyn2vVs/unzip.png
Attachment 2997
