Help Center/ Object Storage Service/ User Guide/ Object Management/ Object Management/ Configuring and Viewing Object Metadata
Updated on 2024-10-24 GMT+08:00
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Configuring and Viewing Object Metadata

Scenarios

Object metadata is a set of name-value pairs that describe an object and is used for object management. OBS has two types of metadata: system-defined object metadata and user-defined object metadata.

You can configure metadata for an object when uploading it or after the object is uploaded.

Metadata Introduction

System-defined Object Metadata

There are two types of system-defined metadata: system-controlled and user-controlled.

  • System-controlled metadata: Metadata like Last-Modified is system controlled and cannot be modified.
  • User-controlled metadata: Metadata like ContentLanguage (configured for an object) is user controlled. You can make an API call to modify such metadata. Table 1 lists the metadata items that you can control.

    OBS uses KMS keys to encrypt objects. The checksum, together with the specified algorithm, are stored as part of the object's metadata. If server-side encryption is requested for the object, the checksum is stored in encrypted form. For more information about server-side encryption, see Server-Side Encryption.

Table 1 OBS metadata

Name

Description

ContentDisposition

Provides a default file name for the requested object. When the object is being downloaded or accessed, the object named after the default file name is opened in the browser or the object download window is displayed.

Suppose that you configure the ContentDisposition metadata with the value of attachment;filename="testfile.xls" for an object. When you access this object by using a link, a download window is displayed and the object name is changed to testfile.xls. For details, see the definition about ContentDisposition in HTTP.

ContentLanguage

States the language or languages intended for the audience. For details, see the definition about ContentLanguage in HTTP.

WebsiteRedirectLocation

Redirects an object to another object or an external URL. The redirection is implemented using static website hosting.

For example, you can redirect an object by doing as follows:

  1. Configure the WebsiteRedirectLocation metadata for object testobject.html in the root directory of bucket testbucket and set the metadata value to http://www.example.com.
    NOTE:

    OBS only supports redirection for objects in a bucket's root directory. Redirection for objects in the bucket's folders is not supported.

  2. Configure static website hosting for bucket testbucket, and set object testobject.html as the default homepage.
  3. Access object testobject.html through the hosted URL provided on the static website hosting page. The access will be redirected to http://www.example.com.

ContentEncoding

Specifies the content encoding format when an object is downloaded. The options are as follows:

  • Standard: compress, deflate, exi, identity, gzip, and pack200-gzip
  • Others: br, bzip2, lzma, peerdist, sdch, xpress, and xz

CacheControl

Specifies the caching behavior for a web page when an object is downloaded.

  • Cacheability: public, private, no-cache, or only-if-cached
  • Expiration time: max-age=<seconds>, s-maxage=<seconds>, max-stale[=<seconds>], min-fresh=<seconds>, stale-while-revalidate=<seconds>, or stale-if-error=<seconds>
  • Revalidation and reloading: must-revalidate, proxy-revalidate, or immutable
  • Others: no-store or no-transform

Expires

Specifies the cache expiration time (GMT).

ContentType

Specifies the object type. For details, see Content-Type.

User-defined Object Metadata

You can add user-defined metadata whose name starts with x-obs-meta- for easy object management. When you retrieve or query an object's metadata, its user-defined metadata will be returned in the response. User-defined metadata is limited to 8 KB in size. The size of user-defined metadata is the sum of the number of bytes in the UTF-8 encoding of each key and value.

User-defined metadata keys are case insensitive, but OBS stores them in lowercase. The user-defined metadata values are case sensitive.

Example:

1
2
3
4
5
6
7
 
PUT /key HTTP/1.1
Host: bucket01.obs.myhuaweicloud.com
x-obs-meta-Test1: Test Meta1

HEAD /Key HTTP/1.1
Host: bucket01.obs.myhuaweicloud.com
x-obs-meta-test1: Test Meta1

Both user-defined metadata keys and their values must conform to US-ASCII. If non-ASCII or unrecognizable characters are necessary, they must be encoded or decoded in URL or Base64 on the client side. The server side does not perform any decoding.

Constraints

  • In a versioning-enabled bucket, you can only configure metadata for the current version of an object, but not for noncurrent versions.
  • Metadata cannot be configured for Archive or Deep Archive objects.
  • The user-defined metadata is limited to 8 KB in size.

Configuring Object Metadata

You can use OBS Console, APIs, SDKs, or obsutil to configure object metadata.

Using OBS Console

  1. In the navigation pane of OBS Console, choose Object Storage.
  2. In the bucket list, click the bucket you want to operate. The Objects page is displayed.
  3. Click the object to be operated, and then click the Metadata tab.
  4. Click Add. Then, configure metadata.

    Figure 1 Adding metadata

  5. Click OK.

Using APIs

Modifying Object Metadata

Using SDKs

Java

Python

C

Go

BrowserJS

.NET

Android

iOS

PHP

Node.js

Using the CLI Tool - obsutil

Command Line Structure

  • In Windows
    • Setting properties of a single object 
      obsutil chattri obs://bucket/key [-meta=aaa:bbb#ccc:ddd] [-sc=xxx] [-acl=xxx] [-aclXml=xxx] [-versionId=xxx] [-fr] [-o=xxx] [-config=xxx] [-e=xxx] [-i=xxx] [-k=xxx] [-t=xxx]
    • Setting properties of objects in batches 
      obsutil chattri obs://bucket[/key] -r [-f] [-v] [-meta=aaa:bbb#ccc:ddd] [-sc=xxx] [-acl=xxx] [-aclXml=xxx] [-o=xxx] [-j=1] [-config=xxx] [-e=xxx] [-i=xxx] [-k=xxx] [-t=xxx]
  • In Linux or macOS
    • Setting properties of a single object 
      ./obsutil chattri obs://bucket/key [-meta=aaa:bbb#ccc:ddd] [-sc=xxx] [-acl=xxx] [-aclXml=xxx] [-versionId=xxx] [-fr] [-o=xxx] [-config=xxx] [-e=xxx] [-i=xxx] [-k=xxx] [-t=xxx]
    • Setting properties of objects in batches 
      ./obsutil chattri obs://bucket[/key] -r [-f] [-v] [-meta=aaa:bbb#ccc:ddd] [-sc=xxx] [-acl=xxx] [-aclXml=xxx] [-o=xxx] [-j=1] [-config=xxx] [-e=xxx] [-i=xxx] [-k=xxx] [-t=xxx]

Examples

  • Take the Windows OS as an example, run the obsutil chattri obs://bucket-test/key -acl=public-read command to set the access permission to an object to public read. 
    obsutil chattri obs://bucket-test/key -acl=public-read

Set the acl of object [key] in the bucket [bucket-test] to [public-read] successfully, request id [04050000016836DDFA73B2B5320E2651]
  • Take the Windows OS as an example, run the obsutil chattri obs://bucket-test -r -f -acl=public-read command to set the access permission to all objects in the bucket to public read. 
    obsutil chattri obs://bucket-test -r -f -acl=public-read

[------------------------------------------------] 100.00% tps:155.15 5/5 233ms
Succeed count is:   5         Failed count is:    0
Metrics [max cost:177 ms, min cost:53 ms, average cost:102.40 ms, average tps:20.41]
Task id is: 9d7f73ff-f747-4fdd-9b2a-815ba2dc3b07

Parameter Description

Parameter

Optional or Mandatory

Description

bucket

Mandatory

Bucket name

key

Mandatory when setting properties of an object.

Optional when setting properties of objects in batches.

Indicates the name of the object whose properties are to be set, or the name prefix of objects whose properties are to be set in batches.

NOTE:

If this parameter is left blank during batch operation, properties of all objects in the bucket are set.

meta

Optional (additional parameter)

Standard or custom metadata that can be specified for destination objects in object replication. This parameter should be configured in the following format: key1:value1#key2:value2#key3:value3.

NOTE:
  1. This parameter takes effect only when it is used together with direct.
  2. This value indicates that the destination objects contain three groups of custom metadata: key1:value1, key2:value2, and key3:value3.
  3. Standard metadata headers include Content-Type, Content-Encoding, Cache-Control, Content-Disposition, Content-Language and Expires.

direct

Optional (additional parameter)

Metadata operation indicator.

The value can be REPLACE_NEW or REPLACE.

REPLACE_NEW: The existing metadata value is replaced with a new one, the metadata lacking a value is assigned one, and the metadata not specified keeps unchanged.

REPLACE: The metadata is replaced with the header included in the current request and the metadata not specified is deleted.

NOTE:

This parameter takes effect only when it is used together with meta.

sc

Optional (additional parameter)

Storage classes of objects. Possible values are:

  • standard: Standard storage class. It features low access latency and high throughput, and is applicable to storing frequently accessed data (multiple accesses per month) or data that is smaller than 1 MB.
  • warm: Infrequent Access storage class. It is ideal for storing infrequently accessed (less than 12 times a year) data, but when needed, the access has to be fast.
  • cold: Archive storage class. It provides secure, durable, and inexpensive storage for rarely-accessed (once a year) data.
  • deep-archive: Deep Archive storage class (under limited beta testing). It is suitable for storing data that is barely (once every few years) accessed. This storage class costs less than the Archive storage class, but takes longer time (usually several hours) to restore data.
NOTE:

For an object whose storage class is cold, restore the object first and then specify its storage class. To restore an object, see Restoring Objects from the Archive Storage.

acl

Optional (additional parameter)

Access control policies that can be specified for objects. Possible values are:

  • private
  • public-read
  • public-read-write
  • bucket-owner-full-control
NOTE:

The preceding four values indicate private read and write, public read, public read and write, and bucket owner full control.

aclXml

Optional (additional parameter)

Access control policy of the bucket, in XML format.

<AccessControlPolicy>
    <Owner>
        <ID>ownerid</ID>
    </Owner>
    <AccessControlList>
        <Grant>
            <Grantee>
                <ID>userid</ID>
            </Grantee>
            <Permission>[WRITE|WRITE_ACP|READ|READ_ACP|FULL_CONTROL]</Permission>
        </Grant>
        <Grant>
            <Grantee>
                <Canned>Everyone</Canned>
            </Grantee>
            <Permission>[WRITE|WRITE_ACP|READ|READ_ACP|FULL_CONTROL]</Permission>
        </Grant>
    </AccessControlList>
</AccessControlPolicy>
NOTE:
  • Owner: Optional. Specify the object owner's ID.
  • In AccessControlList, the Grant field contains the authorized users. Grantee specifies the IDs of authorized users. Canned specifies the authorized user group (currently, only Everyone is supported).
  • The following permissions can be granted: WRITE (write), WRITE_ACP (write ACL), READ (read), READ_ACP (read ACL), and FULL_CONTROL (full control).
NOTICE:

Because angle brackets (<) and (>) are unavoidably included in the parameter value, you must use quotation marks to enclose them for escaping when running the command. Use single quotation marks for Linux or macOS and quotation marks for Windows.

fs

Optional (additional parameter)

Specifies whether the method of listing parallel file systems is applied. If you are listing parallel file systems, you are recommended to add this parameter.

CAUTION:
  • With this method, the listing time required varies largely depending on the directory structures.
  • After this parameter is enabled, marker and limit will be ignored. Then, the buckets or parallel file systems (including directories) will be calculated.
  • This parameter is only supported by obsutil 5.5.12 and later.

versionId

Optional when setting properties of an object (additional parameter)

Version ID of the object whose properties are to be set

fr

Optional when setting properties of an object (additional parameter)

Generates an operation result list when setting properties of an object.

f

Optional when setting properties of objects in batches (additional parameter)

Runs in force mode.

r

Mandatory when setting properties of objects in batches (additional parameter)

Sets properties of objects in batches based on a specified object name prefix.

v

Optional when setting properties of objects in batches (additional parameter)

Sets properties of versions of objects in batches based on a specified object name prefix.

o

Optional (additional parameter)

Indicates the folder where operation result lists reside. After the command is executed, result lists (including success and failure files) are generated in the folder. The default value is .obsutil_output, the subfolder in the home directory of the user who executes obsutil commands.

NOTE:
  • The naming rule for result lists is as follows: chattri_{succeed | failed}_report_time_TaskId.txt

    By default, the maximum size of a single result list is 30 MB and the maximum number of result lists that can be retained is 1024. You can set the maximum size and number by configuring recordMaxLogSize and recordBackups in the configuration file.

  • If there are multiple folders and files and you need to confirm the detailed error information about a failed task, refer to the failure list chattri_failed_report_time_TaskId.txt in the result list folder and the log files in the log path.

j

Optional when setting properties of objects in batches (additional parameter)

Indicates the maximum number of concurrent tasks for setting object properties in batches. The default value is the value of defaultJobs in the configuration file.

NOTE:

The value is ensured to be greater than or equal to 1.

config

Optional (additional parameter)

User-defined configuration file for executing the current command. To learn the parameters that can be configured in this file, see Configuration Parameters.

e

Optional (additional parameter)

Specifies the endpoint.

i

Optional (additional parameter)

Specifies the user's AK.

k

Optional (additional parameter)

Specifies the user's SK.

t

Optional (additional parameter)

Specifies the user's security token.

Only one from acl, sc, or aclXml can be set for each command.

Response

Field

Description

Parallel

Parameter -p in the request

Jobs

Parameter -j in the request

Threshold

Parameter -threshold in the request

PartSize

Parameter -ps in the request

Exclude

Parameter -exclude in the request

Include

Parameter -include in the request

TimeRange

Parameter -timeRange in the request

VerifyLength

Parameter -vlength in the request

VerifyMd5

Parameter -vmd5 in the request

CheckpointDir

Parameter -cpd in the request

OutputDir

Parameter -o in the request

ArcDir

Parameter -arcDir in the request

Succeed count

Number of successful tasks

Failed count

Number of failed tasks

Skip count

Number of tasks that are skipped during incremental upload, download, or copy, and synchronous upload, download, or copy.

NOTE:

Skipped tasks are recorded into successful tasks.

Warning count

Number of tasks that are executed successfully but contain warnings.

NOTE:
  • The task for which a warning is generated may be a failure or a success, which needs to be further determined according to the corresponding result list.
  • The number of tasks that generate warnings is independent of the number of successful or failed tasks. The total number of tasks is the number of successful tasks plus the number of failed tasks.

Succeed bytes

Number of bytes that are successfully uploaded or downloaded.

max cost

Maximum duration of all tasks, in ms

min cost

Minimum duration of all tasks, in ms

average cost

Average duration of all tasks, in ms

average tps

The average number of tasks completed per second

Task id

Unique ID of an operation, which is used to search for the result list generated in a batch task

Viewing Object Metadata

You can use OBS Console, APIs, SDKs, or obsutil to view object metadata.

Using OBS Console

  1. In the navigation pane of OBS Console, choose Object Storage.
  2. In the bucket list, click the bucket you want to operate. The Objects page is displayed.
  3. Click the object of which you want to view the metadata. On the displayed details page, view the object metadata on the Metadata tab page.

Using APIs

Querying Object Metadata

Using SDKs

Java

Python

C

Go

BrowserJS

.NET

Android

iOS

PHP

Node.js

Using the CLI Tool - obsutil

Command Line Structure

  • In Windows 
    obsutil stat obs://bucket/key [-acl][-bf=xxx] [-config=xxx] [-e=xxx] [-i=xxx] [-k=xxx] [-t=xxx]
  • In Linux or macOS 
    ./obsutil stat obs://bucket/key [-acl][-bf=xxx] [-config=xxx] [-e=xxx] [-i=xxx] [-k=xxx] [-t=xxx]

Examples

  • Take the Windows OS as an example. Run the obsutil stat obs://bucket-test/key command to query the basic properties of an object. 
    obsutil stat obs://bucket-test/key

Start at 2024-09-25 04:48:10.1147483 +0000 UTC

Key:
  obs://bucket-test/key
LastModified:
  2018-11-16T02:15:49Z
Size:
  7
StorageClass:
  standard
ETag:
  43d93b553855b0e1fc67e31c28c07b65
ContentType:
  text/plain
Type:
  file

Parameter Description

Parameter

Optional or Mandatory

Description

bucket

Mandatory

Bucket name

key

Mandatory

Object name

acl

Optional

Queries the access control policies of the object at the same time.

bf

Optional (additional parameter)

Display format of the object size (in bytes). Possible values are:

  • human-readable
  • raw
NOTE:

If this parameter is not configured, the display format of the object size (in bytes) is determined by the humanReadableFormat parameter in the configuration file.

config

Optional (additional parameter)

User-defined configuration file for executing the current command. To learn the parameters that can be configured in this file, see Configuration Parameters.

e

Optional (additional parameter)

Specifies the endpoint.

i

Optional (additional parameter)

Specifies the user's AK.

k

Optional (additional parameter)

Specifies the user's SK.

t

Optional (additional parameter)

Specifies the user's security token.

Response

Field

Description

Key

Object name

LastModified

Latest modification time of the object

Size

Object size, in bytes

StorageClass

Storage class of the object

MD5

Real MD5 of the object

NOTE:

You can query this value only after running the cp command and configuring the -vmd5 parameter.

ETag

ETag value of an object calculated on the server

ContentType

Content-Type of the object

Type

Object type

Metadata

Customized metadata of the object

Acl

Access control policy of the object

Object Metadata Content-Type

Content-Type

When you access an object through a web browser, the system specifies an application to open the object according to the value of Content-Type. You can modify the Content-Type of an object based on its file name extension.

If you upload an object by calling an API, specify the value of Content-Type.

Table 2 Common Content-Type values

File Name Extension

Content-Type

File Name Extension

Content-Type

.* (binary stream, unknown file type)

application/octet-stream

.7z

application/x-7z-compressed

.001

application/x-001

.301

application/x-301

.323

text/h323

.906

application/x-906

.907

drawing/907

.a11

application/x-a11

.acp

audio/x-mei-aac

.ai

application/postscript

.aif

audio/aiff

.aifc

audio/aiff

.aiff

audio/aiff

.anv

application/x-anv

.asa

text/asa

.asf

video/x-ms-asf

.asp

text/asp

.asx

video/x-ms-asf

.au

audio/basic

.avi

video/avi

.awf

application/vnd.adobe.workflow

.biz

text/xml

.bmp

application/x-bmp

.bot

application/x-bot

.c4t

application/x-c4t

.c90

application/x-c90

.cal

application/x-cals

.cat

application/vnd.ms-pki.seccat

.cdf

application/x-netcdf

.cdr

application/x-cdr

.cel

application/x-cel

.cer

application/x-x509-ca-cert

.cg4

application/x-g4

.cgm

application/x-cgm

.cit

application/x-cit

.class

java/*

.cml

text/xml

.cmp

application/x-cmp

.cmx

application/x-cmx

.cot

application/x-cot

.crl

application/pkix-crl

.crt

application/x-x509-ca-cert

.csi

application/x-csi

.css

text/css

.cut

application/x-cut

.dbf

application/x-dbf

.dbm

application/x-dbm

.dbx

application/x-dbx

.dcd

text/xml

.dcx

application/x-dcx

.der

application/x-x509-ca-cert

.dgn

application/x-dgn

.dib

application/x-dib

.dll

application/x-msdownload

.doc

application/msword

.dot

application/msword

.drw

application/x-drw

.dtd

text/xml

.dwf

Model/vnd.dwf

.dwf

application/x-dwf

.dwg

application/x-dwg

.dxb

application/x-dxb

.dxf

application/x-dxf

.edn

application/vnd.adobe.edn

.emf

application/x-emf

.eml

message/rfc822

.ent

text/xml

.epi

application/x-epi

.eps

application/x-ps

.eps

application/postscript

.etd

application/x-ebx

.exe

application/x-msdownload

.fax

image/fax

.fdf

application/vnd.fdf

.fif

application/fractals

.fo

text/xml

.frm

application/x-frm

.g4

application/x-g4

.gbr

application/x-gbr

.

application/x-

.gif

image/gif

.gl2

application/x-gl2

.gp4

application/x-gp4

.hgl

application/x-hgl

.hmr

application/x-hmr

.hpg

application/x-hpgl

.hpl

application/x-hpl

.hqx

application/mac-binhex40

.hrf

application/x-hrf

.hta

application/hta

.htc

text/x-component

.htm

text/html

.html

text/html

.htt

text/webviewhtml

.htx

text/html

.icb

application/x-icb

.ico

image/x-icon

.ico

application/x-ico

.iff

application/x-iff

.ig4

application/x-g4

.igs

application/x-igs

.iii

application/x-iphone

.img

application/x-img

.ins

application/x-internet-signup

.isp

application/x-internet-signup

.IVF

video/x-ivf

.java

java/*

.jfif

image/jpeg

.jpe

image/jpeg

.jpe

application/x-jpe

.jpeg

image/jpeg

.jpg

image/jpeg

.jpg

application/x-jpg

.js

application/x-javascript

.jsp

text/html

.la1

audio/x-liquid-file

.lar

application/x-laplayer-reg

.latex

application/x-latex

.lavs

audio/x-liquid-secure

.lbm

application/x-lbm

.lmsff

audio/x-la-lms

.ls

application/x-javascript

.ltr

application/x-ltr

.m1v

video/x-mpeg

.m2v

video/x-mpeg

.m3u

audio/mpegurl

.m4e

video/mpeg4

.mac

application/x-mac

.man

application/x-troff-man

.math

text/xml

.mdb

application/msaccess

.mdb

application/x-mdb

.mfp

application/x-shockwave-flash

.mht

message/rfc822

.mhtml

message/rfc822

.mi

application/x-mi

.mid

audio/mid

.midi

audio/mid

.mil

application/x-mil

.mml

text/xml

.mnd

audio/x-musicnet-download

.mns

audio/x-musicnet-stream

.mocha

application/x-javascript

.movie

video/x-sgi-movie

.mp1

audio/mp1

.mp2

audio/mp2

.mp2v

video/mpeg

.mp3

audio/mp3

.mp4

video/mp4

.mpa

video/x-mpg

.mpd

application/vnd.ms-project

.mpe

video/x-mpeg

.mpeg

video/mpg

.mpg

video/mpg

.mpga

audio/rn-mpeg

.mpp

application/vnd.ms-project

.mps

video/x-mpeg

.mpt

application/vnd.ms-project

.mpv

video/mpg

.mpv2

video/mpeg

.mpw

application/vnd.ms-project

.mpx

application/vnd.ms-project

.mtx

text/xml

.mxp

application/x-mmxp

.net

image/pnetvue

.nrf

application/x-nrf

.nws

message/rfc822

.odc

text/x-ms-odc

.out

application/x-out

.p10

application/pkcs10

.p12

application/x-pkcs12

.p7b

application/x-pkcs7-certificates

.p7c

application/pkcs7-mime

.p7m

application/pkcs7-mime

.p7r

application/x-pkcs7-certreqresp

.p7s

application/pkcs7-signature

.pc5

application/x-pc5

.pci

application/x-pci

.pcl

application/x-pcl

.pcx

application/x-pcx

.pdf

application/pdf

.pdf

application/pdf

.pdx

application/vnd.adobe.pdx

.pfx

application/x-pkcs12

.pgl

application/x-pgl

.pic

application/x-pic

.pko

application/vnd.ms-pki.pko

.pl

application/x-perl

.plg

text/html

.pls

audio/scpls

.plt

application/x-plt

.png

image/png

.png

application/x-png

.pot

application/vnd.ms-powerpoint

.ppa

application/vnd.ms-powerpoint

.ppm

application/x-ppm

.pps

application/vnd.ms-powerpoint

.ppt

application/vnd.ms-powerpoint

.ppt

application/x-ppt

.pr

application/x-pr

.prf

application/pics-rules

.prn

application/x-prn

.prt

application/x-prt

.ps

application/x-ps

.ps

application/postscript

.ptn

application/x-ptn

.pwz

application/vnd.ms-powerpoint

.r3t

text/vnd.rn-realtext3d

.ra

audio/vnd.rn-realaudio

.ram

audio/x-pn-realaudio

.ras

application/x-ras

.rat

application/rat-file

.rdf

text/xml

.rec

application/vnd.rn-recording

.red

application/x-red

.rgb

application/x-rgb

.rjs

application/vnd.rn-realsystem-rjs

.rjt

application/vnd.rn-realsystem-rjt

.rlc

application/x-rlc

.rle

application/x-rle

.rm

application/vnd.rn-realmedia

.rmf

application/vnd.adobe.rmf

.rmi

audio/mid

.rmj

application/vnd.rn-realsystem-rmj

.rmm

audio/x-pn-realaudio

.rmp

application/vnd.rn-rn_music_package

.rms

application/vnd.rn-realmedia-secure

.rmvb

application/vnd.rn-realmedia-vbr

.rmx

application/vnd.rn-realsystem-rmx

.rnx

application/vnd.rn-realplayer

.rp

image/vnd.rn-realpix

.rpm

audio/x-pn-realaudio-plugin

.rsml

application/vnd.rn-rsml

.rt

text/vnd.rn-realtext

.rtf

application/msword

.rtf

application/x-rtf

.rv

video/vnd.rn-realvideo

.sam

application/x-sam

.sat

application/x-sat

.sdp

application/sdp

.sdw

application/x-sdw

.sit

application/x-stuffit

.slb

application/x-slb

.sld

application/x-sld

.slk

drawing/x-slk

.smi

application/smil

.smil

application/smil

.smk

application/x-smk

.snd

audio/basic

.sol

text/plain

.sor

text/plain

.spc

application/x-pkcs7-certificates

.spl

application/futuresplash

.spp

text/xml

.ssm

application/streamingmedia

.sst

application/vnd.ms-pki.certstore

.stl

application/vnd.ms-pki.stl

.stm

text/html

.sty

application/x-sty

.svg

text/xml

.swf

application/x-shockwave-flash

.tdf

application/x-tdf

.tg4

application/x-tg4

.tga

application/x-tga

.tif

image/tiff

.tif

application/x-tif

.tiff

image/tiff

.tld

text/xml

.top

drawing/x-top

.torrent

application/x-bittorrent

.tsd

text/xml

.txt

text/plain

.uin

application/x-icq

.uls

text/iuls

.vcf

text/x-vcard

.vda

application/x-vda

.vdx

application/vnd.visio

.vml

text/xml

.vpg

application/x-vpeg005

.vsd

application/vnd.visio

.vsd

application/x-vsd

.vss

application/vnd.visio

.vst

application/vnd.visio

.vst

application/x-vst

.vsw

application/vnd.visio

.vsx

application/vnd.visio

.vtx

application/vnd.visio

.vxml

text/xml

.wav

audio/wav

.wax

audio/x-ms-wax

.wb1

application/x-wb1

.wb2

application/x-wb2

.wb3

application/x-wb3

.wbmp

image/vnd.wap.wbmp

.wiz

application/msword

.wk3

application/x-wk3

.wk4

application/x-wk4

.wkq

application/x-wkq

.wks

application/x-wks

.wm

video/x-ms-wm

.wma

audio/x-ms-wma

.wmd

application/x-ms-wmd

.wmf

application/x-wmf

.wml

text/vnd.wap.wml

.wmv

video/x-ms-wmv

.wmx

video/x-ms-wmx

.wmz

application/x-ms-wmz

.wp6

application/x-wp6

.wpd

application/x-wpd

.wpg

application/x-wpg

.wpl

application/vnd.ms-wpl

.wq1

application/x-wq1

.wr1

application/x-wr1

.wri

application/x-wri

.wrk

application/x-wrk

.ws

application/x-ws

.ws2

application/x-ws

.wsc

text/scriptlet

.wsdl

text/xml

.wvx

video/x-ms-wvx

.xdp

application/vnd.adobe.xdp

.xdr

text/xml

.xfd

application/vnd.adobe.xfd

.xfdf

application/vnd.adobe.xfdf

.xhtml

text/html

.xls

application/vnd.ms-excel

.xls

application/x-xls

.xlw

application/x-xlw

.xml

text/xml

.xpl

audio/scpls

.xq

text/xml

.xql

text/xml

.xquery

text/xml

.xsd

text/xml

.xsl

text/xml

.xslt

text/xml

.xwd

application/x-xwd

.x_b

application/x-x_b

.sis

application/vnd.symbian.install

.sisx

application/vnd.symbian.install

.x_t

application/x-x_t

.ipa

application/vnd.iphone

.apk

application/vnd.android.package-archive

.xap

application/x-silverlight-app

.zip

application/zip

.rar

application/x-rar-compressed
Parent Topic: Object Management