The table below provides some useful information about the .def extension. It answers questions such as:
- What is the .def file?
- What program do I need to open a .def file?
- Where can I find the specifications for .def?
- How can I convert .def file to another format?
We hope you find this page helpful and a valuable resource.
Details of extension .def
Recommended: Click here to run a free instant scan for .def related errors
1 extension(s) and 0 alias(es) found in database.
| Extension: | .def |
|---|---|
| Type: | C++ Definition File |
| Category: | Development |
| Mime type: | text/plain |
| Description: | |
| DEF file is a C++ Definition File. C++ is a general-purpose programming language. It is a statically-typed free-form multi-paradigm language supporting procedural programming, data abstraction, object-oriented programming, and generic programming. | |
| [Detailed description] [Sample not yet available] | |
| Open with: | Visual C++ |
| Program name: | none |
| Related links: | |
| none | |
| Aliases: | |
| none | |
| Related extensions: | |
| ac, am, aps, asm, bb, bbg, c, c++, cco, chi, chs, clw, cs, dbgdt, dlg, dsp, dsw, ewd, ewp, eww, f, h, hpp, hs, htl, i, i, idl, mk, obj, opt, pas, pds, pp, ppl, ppu, rc, rct, t, vip, xcl | |
Cannot open .def files on your system?
When windows gives you an error message saying that it cannot open
.def files, this means either:
- You need to identify a program that can open the file or
- Your registry may be damaged.
RECOMMENDED:
In both cases it is strongly recommended that you run a
free scan for registry errors.

