Supported File Formats

General

The Lexbe eDiscovery Platform (LEP) supports a number of file formats for native review. For files that include text in the file, this text is indexed into the application search engine for full-featured search and retrieval.

Prior to converting files, LEP applies container file expansion, DeNIST, and extension repair procedures.  See Automated ESI Processing for more information.  

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

Standard File Types for Conversion 

LEP identifies and attempts 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
  pdf  Adobe Acrobat PDF Portfolio*   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

LEP will index PDF Portfolio files so that they are searchable, but they are not automatically processed to allow separation and Bates stamping.  This is available as a manual technical service (billed hourly).
 
Failure to Convert Standard File Types

If a standard file type fails to convert, a placeholder file is created and it is noted in the database record that the file Failed to Convert. Standard file types may fail to convert for a variety of reasons, including:  file corruption, file type mis-identification, print or data extraction issues, and password protection.  

Some non-converted standard file types can be converted manually as a technical service (billable hourly or per GB, depending on file type and issues involved).

Other Files Not Converted

LEP does not auto-convert files other than the standard file types listed above.  Instead, a placeholder file is created and it is noted in the database record that the file was Not Converted (i.e., is not supported). 

Some non-converted, non-standard file types can be converted manually as a technical service (
billable hourly or per GB, depending on file type and issues involved).

Files that do not convert would include: media files, some container files, some email files, database files, and others, described in more detail below.  

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

See Standard File Types for more information.  

Other Notes

No file types are supported if password protected, restricted for viewing, encrypted, damaged, or corrupted.