Freefileviewer - Free viewer for PDF, DOC, DOCX, PHP, CFG, DAT etc. files
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SysTools Exchange EDB Viewer - SysTools Exchange EDB Viewer helps users to preview all emails from Exchange database files .
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SysTools PST Viewer - PST Viewer Freeware tool to open, read & view PST files without Outlook 2019, 2016, 2013, 2010, 2007.
DiskInternals Linux Reader - A freeware tool for extracting files from Ext2/Ext3/Ext4, hfs and ReiserFS partitions in Windows