Help! I Can’t Open APP Files!

There are many reasons why your APP file might not open on your computer. If you have APP files that don’t open when you double-click it, ask yourself the following questions...

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Do I have the right program?

If you don’t have a program installed on your computer that’s compatible with APP files, you won’t be able to open one. See if you have one of the most common programs associated with APP files listed below.

  • Clarion for Windows Application
  • VTech Helio Application
  • Alphacam Punch Post
  • Gupta Team Developer Normal Mode Application File
  • OrbWorks PocketC CE Application
  • Until Application
  • Lotus Symphony Add-in Application
  • Timex Data Link Watch Application
  • Cybiko Computer Application File
  • dBASE Application Object File
  • Ca Visual Objects Platform for Developer Project File (CA)
  • Executable Application
  • R:Base Symphony DR-DOS FoxPro Application
  • SymbianOS Application
  • Video CD on CD-i Application
  • Psion Oval Application
  • ArcPad Ver. 5 Project

What type of file is it?

When you can’t open APP files, try to figure out the file type. This can help you find the right program to open it. Usually, APP files are considered Executable Files. However, you can look up the file type to be sure. Start by right-clicking the file icon and clicking “Properties” (“More Info” if you’re on a Mac). Then look for the file type under “Type of File” (“Kind” on a Mac).

Can a developer help?

When you can’t open APP files, a software developer might be able to help. The developers for the programs mentioned above are as follows:

Software Developer
Clarion for Windows Application SoftVelocity
VTech Helio Application VTech Holdings Ltd.
Alphacam Punch Post Planit
Gupta Team Developer Normal Mode Application File Unknown
OrbWorks PocketC CE Application Microsoft Developer
Until Application PC Software Company
Lotus Symphony Add-in Application PC Software Company
Timex Data Link Watch Application Timex Corporation.
Cybiko Computer Application File Cybiko Inc.
dBASE Application Object File Unknown
Ca Visual Objects Platform for Developer Project File (CA) CAVO
Executable Application Microsoft Developer
R:Base Symphony DR-DOS FoxPro Application or other
SymbianOS Application Symbian Ltd.
Video CD on CD-i Application Windows Programmer
Psion Oval Application Psion PLC
ArcPad Ver. 5 Project PC Software Company

Try contacting one of these developers to find out how you can open your APP file.

Can I use a universal file viewer?

A universal file viewer is the way to go when you have APP files that can’t be opened by any other program. Install a universal file viewer like File Magic (Download) and see if it will open your APP file. Remember that if your file is not compatible, the universal file viewer will only open it in binary format.


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