The BEST File Manager for Windows

Works with and greatly enhances:

Windows 10

Windows 8, 7, Vista, XP

Servers 2003 and later

Starting at just $50 for home use and $69 for a business license (and a business two-pack for just $99!)

What's New / What's Up

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Version 4: the future

Major new tools, significant upgrades to current components and faster folder listings.

  • Find and rename problem files: bad paths, illegal characters, Linux & iOS (Mac) characters.
  • Check files and folders for compliance with different file systems e.g., NTFS, Fat-16, Fat-32, eFat, CDs, iOS, Linux and custom.
    Know if the files are right before you copy.
  • Delete files no matter their length or how they are named.
  • Powerful renaming with RegEx e.g. change 'Romeo Smith' into 'Smith, Romeo' and much more.
  • Lightening fast directory listing no matter how large the folder.
  • Detailed reports for copy errors.
  • Variable text size for views and dialogs.
  • and many more improvements and fixes..


See the V4 preview here.

Update May 2017

A May 2017 Microsft security update for Windows 10 conflicted with a major routine in FileBoss resulting in FileBoss not starting on some Windows 10 systems.

Versions V3.101 and later, fix the problem. You can read more about this at the page
Windows Creators Conflict.


Change file extensions from 'htm' to 'html' across many folders


Change file extensions from 'htm' to 'html' across many folders

A webmaster needed to quickly change more than 100 files (located in various folders) named index.htm to index.html to conform to new corporate standards.

The Solution

Search for Files Based on When they were Modified

He used FileBoss to quickly create a File Set of all the files named index.htm on their development drives C: and \\webwork\C that needed to be changed and, then in under a minute, changed their extensions using the Quick Set panel of FileBoss' rename facility.

To learn more about FileBoss' powerful, advanced renaming tools click here: FileBoss: Rename Files & Folders.

Changing Extensions with the Quick Sets Rename Panel