Downloading FileFormatConverters 1.0 from our website was free. The software is included in Office Tools. The most popular version among FileFormatConverters users is 1.0. This free software is a product of Microsof Corporation.
From the developer:
This compatibility pack helps you to open, edit, and save documents, workbooks, and presentations that were created in the newer versions of Word, Excel, and PowerPoint. Scroll down to see instructions and system requirements. It does not contain malware or any bad content for which is supplied by Microsoft.
You may want to check out more software, such as Timer 2007, XLplus Add-On: Basic II Ver. or Merge Cells Wizard, which might be related to FileFormatConverters.