Supported File Formats

Lexbe eDiscovery Platform supports a number of file formats for native review as part of the Lexbe.com litigation support application. For files that include text in the file, this text is indexed into the application search engine for full-featured search and retrieval.

Technical Note Details

For native files uploaded to Lexbe eDiscovery Platform or as part of Lexbe eDiscovery Services using our conversion processing jobs (e.g., Native TIFF+, Native PDF+) we identify certain file types for processing and potential conversion.  These file types are described below.

Prior to converting files, we apply container file expansion,  DeNIST and extension repair procedures.

Files that we do not convert as part of our automated processing services are marked with a placeholder file, either in PDF or TIFF, depending on the service ordered.

Standard File Types for Conversion 

We identify and attempt to convert (to TIFF or PDF, depending on the service), the following file types:

 Ext Application / Description
 Type
  bmp   Image BMP     Image
  class  Java programming file  Text/Word Processing
  config   Application configuration File  Text/Word Processing
  css   Cascading style sheet (web page support)  Text/Word Processing
  csv  CSV (Comma-separated values) (*.csv)   Text/Word Processing
  doc   Microsoft Word 2003 for Windows (*.doc)   Text/Word Processing
  docx   Microsoft Word 2007 and 2010 for Windows (*.docx)  Text/Word Processing
  eml
  Microsoft Outlook Express email
  Email
  emlx  Apple file  Email
  gif  Image GIF  Image
  htm  HTML web page  Web Page
  html   HTML web page   Web Page
  ics   iCalendar file   Text/Word Processing
  inf   Setup Information File  Text/Word Processing
  ini   Text configuration file  Text/Word Processing
  jpeg  JPEG   Image
  jpg   JPG  Image
  js  Javascript programming file  Text/Word Processing
  json  Javascript object notation file  Text/Word Processing
  lnk   Windows File Shortcut  Text/Word Processing
  log  Appplication log file  Text/Word Processing
  manifest   Java programming file  Text/Word Processing
  mht   HTML web page  Web Page
  mht  MHT archives (HTML archives saved by Internet Explorer) (*.mht)  Web page
  msg
  Micorsoft Outlook email
  Email
  pdf  Adobe Acrobat (converted from text)  Text/Word Processing
  pdf   Adobe Acrobat (image only)  Image
  pdf  Adobe Acrobat (text under image)   Image
  php   PHP programming file  Text/Word Processing
  png   PNG image   Image
  pps  Microsoft PowerPoint 2003 for Windows  Presentation
  ppsx   Microsoft PowerPoint 2007 and 2010 for Windows  Presentation
  ppt   Microsoft PowerPoint 2003  for Windows  Presentation
  pptx  Microsoft PowerPoint 2007 and 2010 for Windows  Presentation
  pst   Microsoft Outlook data files
  Container
  py   Python Programming Script    Text/Word Processing
  rar   RAR  Container
  rtf   Microsoft Rich Text Format (*.rtf)   Text/Word Processing
  tif   TIF  Image
  tiff   TIFF   Image
  txt   ASCII Text  Text/Word   Processing
  url  Unliform Resource Locator file  Text/Word Processing
  vcf   Vcard contact information file   Text/Word Processing
  xls   Microsoft Excel 2003 for Windows (*.xls)  Spreadsheet
  xlsm  Microsoft Excel 2007 and 2010 for Windows (*.xlsx)   Spreadsheet
  xlsx  Microsoft Excel 2007 and 2010 for Windows (*.xlsx)  Spreadsheet
  xml    XML text  Text/Word Processing
  zip  Archive container ZIP (*.zip)   Container
   
Failure to Convert Standard File Types

We attempt to convert one of the standard file types above and cannot, our procedure is create a placeholder file and indicate in the database record that the file 'Failed to Convert'. The standard file types may fail to convert for a variety of reasons, including file corruption, file type mis-identification, print or data extraction and password protection.  

Some non-converted standard file types can be converted with manual technical support services (hourly or per GB depending on file type and issues involved).

Other Files Not Converted

We do not attempt to convert files other than the standard file types above.  When we encounter a file type not considered 'standard', our procedure is create a placeholder file and indicate in the database record that the file was  'Not Converted'. 

Some non-converted non-standard file types can be converted with manual technical support services (hourly or per GB depending on file type and issues involved).

Files not Converted include a number of file types, including Media Files, some Container Files, some Email Files, Database Files, and other file types, described more below.  

Failure to convert a file does not mean it does not contain probative evidence, only that we did not covert it with our automated procedures.  These files should be reviewed and further steps to make reviewable should be considered, when appropriate.

Media Files

Media files (video and audio) cannot be converted to TIFF or PDF.  The following is a listing of common media file types.  These can be uploaded to Lexbe eDiscovery Platform, their records coded, and sometimes viewed or played depending on file type, connection speed and local browser and computer settings and installed applications.  The following is a listing of common media types

 Ext Application / Description Type
 avi
  Windows video
 Video
 asf   ASF Video
 m4a  QuickTime Video
 m4p  Apple Video
 m4v    QuickTime Video
 mov   QuickTime Audio
 mp3  MP3  Audio
 swf   Flash
 Video
 wav  Wav file Audio
 wma  WMA Audio or Video
 wmf    Windows Metafile Format 
 wmv Windows Video
 Video
 vgs Virtual Game Station Memory Card Save Video

Unusual Container Files

As part of our automated processing, we extract ZIP and RAR files.  We do not automatically extract more unusual container files.  Some types we do not process include 7z, G7, Iza, Jar, Sit.  We can extract many container files that we do not automatically extract as part of a separate technical processing (hourly cost).  The following are common file types you may wish for us to convert in any particular file set if present.

Email Files

Our automated conversion processes automatically converts Outlook PST and MSG files.  Other email files or stores must be manually or batch converted prior to automated processing (separate job and cost).  The following are email types we do not automatically process but can process manually (separate technical support job).

 Ext Application
 dbx   Microsoft Outlook Express 5 and 6 for Windows
 mbs Opera Email for Windows
 mbx  Eudora MBX message files
 mbx  MBOX email archives (including Thunderbird)
 nsf Lotus Notes email
 ost     Offline folder file in Microsoft Outlook.

Database Files

Our automated conversion processes does not convert database files.  If data is to be extracted, then someone should open the databases individually and query them for applicable reports, and then save as text, Excel spreadsheets or PDFs, for further processing.  We do this as a manual technical support service (hourly).  The following are database types we do not automatically process but may be process manually (separate technical support job), depending on type and version.

 Ext Application
 dbf
 Oracle or other database
 frm MySQL
 myd MySQL
 myi MySQL
 mdb  Microsoft Access Database 2003
 mdbx  Microsoft Access Database 2007 and 2010
 iif Intuit interchange file (Quickbooks)
 ldf SQL Server
 qba Quickbooks
 qbb Quickbooks
 qbm Quickbooks
 qbw Quickbooks
 qbx Quickbooks
 qby Quickbooks

MAC Files

Our automated conversion procedures do not reliably convert productivity files used for the MAC (e.g., Microsoft Office for the MAC, Apple Numbers, etc.)  These files may possibly convert, depending on version and other factors, but often will not convert, misconvert or generate unhelpful internal MAC  resource fork files.  Mac email is also not supported (MAC native or Outlook for the MAC).   We recommend that MAC productivity files be converted to MS Office for Windows version 2007 or 2010 prior to upload.

Other Files Not Automatically Converted

We do not automatically convert a number of file types that may include evidence.  For many we can convert to PDF or TIFF with non-automatic procedures with our Lexbe eDiscovery services, but this requires a separate job and instructions.  The following are common file types you may wish for us to convert in any particular file set if present.

 Ext Application Type
 123 Lotus 1-2-3 (*.123, *.wk?) Spreadsheet
 art Bitmap image file compressed by (AOL) Graphic/Image
 doc Microsoft Word for the Mac (any version) Text/Word Processing
 docs Microsoft Word for the Mac (any version) Text/Word Processing
 pages iWork Pages for the Mac (any version) Text/Word Processing
 mso Microsoft Office 2000  HTML message
 numbers iWork Numbers for the Mac (any version) Spreadsheet
 key iWork Keynotes for the Mac (any version) Presentation
 dwg Autocad  Other 
 dxf  Autocad  Other
 epsf EPSF   Image
 hjt  Treepad HJT files Other
 mpp Microsoft Project 2003  Other
 mppx  Microsoft Project 2007 - 2010 Other
 obd Office binder document Container
 qpw  Quattro Pro   Spreadsheet
 sam  Ami Pro (*.sam)  Text/Word Processing
 tmp Application Temporary File Other
 vdx  Visio XML files (*.vdx)  Image
 vcf MS Outlook, other programs (contact info) Text
 xlk Backup file created by MS Excel Other
 wb1   Quattro Pro  Spreadsheet
 wb2 Quattro Pro  Spreadsheet
 wb3  Quattro Pro  Spreadsheet
 wks  Microsoft Works
 Text/Word Processing
 wpg   WPG (WPG version 1.0 only)  Image

Media Files

Video and audio files can be uploaded to a case; however, Lexbe eDiscovery Platform will not play them directly in your browser. When you upload these types of files, under the original tab when you click, it will open or not depending on mime type associations.

Other Notes

Files of any type are not supported if they are password protected, restricted for viewing, encrypted, damaged, corrupted, etc. There are often many versions of a particular file format and not all may be supported. There are many reasons why any particular file or groups of files may not be searchable (index) or be viewable or fully viewable.

If you have questions or needs for other formats, contact us at LexbeSupport.