How to view corrupted OST file

OST Viewer Tool is free software for viewing the content of OST files of any version and size.

Features of OST file viewer:

  • Show content of OST files without Microsoft Outlook
  • Show content of OST files without Windows Domain Controller
  • OST file Viewer for all versions of .ost files
  • Content OST viewer for damaged .ost files
  • Convert ost to pst file
  • Convert ost to msg files
  • OST view for 32- and 64-bit versions of files

How to view ost file contents:

Instructions for viewing content of any *.ost file without Microsoft Outlook and without Microsoft Exchange Server:

  1. Download and install OST Viewer Tool from here:
  2. Run OST Viewer Tool
  3. Select .ost file on first page OST Viewer Tool
  4. Press Next button
  5. View content of ost file

The view ost file contents functions are free of charge in OST Viewer Tool.

Product highlights:

  • Fast and hassle-free viewing of damaged OST storage files
  • Easy recovery from corrupted OST files and conversion of data from OST to PST/EML/MSG/VCF formats
  • Easy to use wizard-based interface
  • Built-in content browser
  • Support of OST files of up to 32 TB in size
  • Compact size and nearly instant installation


  • OST Viewer Tool do not support a recovering of contact groups yet.

System requirements:

  • Windows 98 and above