File Extension REX

.REX File

File extension: REX
File type: Database Windows Client Local File


Notes about the REX file extension:



To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The REX file type is primarily associated with '4th Dimension' by 4D, Inc.. The 4th Dimension product line offers a range of Mac OS and Windows products that can be used together to create a fully integrated, Web-enabled, cross-platform database development solution, or as individual components.

Detailed information for file extension REX:


Primary association: 4th Dimension
Company: 4D, Inc.
File classification: Database

Other applications associated with file type REX:

  • ACT! by Best Software CRM DivisionMay be a DOS extension.
  • Oracle Report Definition
  • PharLab Executable FileOld file format.
  • ReCycled Audio Loop Export File The identifying characters used for this association are - Hex: 46 4F 52 4D 00 , ASCII: FORM , Hex (position 8): 41 49 46 46 53 53 4E 44 00 , ASCII: AIFFSSND
  • REXX (Script) by IBMREXX (REstructured eXtended eXecutor) is an interpreted programming language which was developed at IBM. It is a structured high-level programming language which was designed to be both easy to learn and easy to read. Both commercial and open source interpreters for REXX are available on a wide range of computing platforms, and compilers are available for IBM mainframes. This association is classified as Source Code. Related links: Wikipedia REXX Page
File Identifier - TrID
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database




To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension REX click this link to expand/hide the additional area.

System Info for File Extension .REX

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: ReCycle.rex
EXEFile: %ProgramFiles%\Propellerhead\ReCycle\ReCycle.exe %1

ProgramID: ReCycle Demo.rex
EXEFile: %ProgramFiles%\Propellerhead\ReCycle Demo\ReCycle Demo.exe


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