The table below provides some useful information about the .cls extension. It answers questions such as:
- What is the .cls file?
- What program do I need to open a .cls file?
- Where can I find the specifications for .cls?
- How can I convert .cls file to another format?
We hope you find this page helpful and a valuable resource.
Details of extension .cls
2 extension(s) and 1 alias(es) found in database.
Problems with .cls files?
First check your registry for hidden errors!
| Extension: | .cls |
|---|---|
| Type: | CLASS Group Abbreviation |
| Category: | Abbreviation |
| Mime type: | none |
| Description: | |
| CLS isn't filename extension, it is the abbreviated name of release group. (iMMERSiON) | |
| [Detailed description not yet available] [Sample not yet available] | |
| Open with: | |
| Program name: | |
| Related links: | |
| none | |
| Aliases: | |
| none | |
| Related extensions: | |
| brd, dev, dgr, flt, ims, lol, rld, rzr | |
| Extension: | .cls |
|---|---|
| Type: | Visual Basic Class Module |
| Category: | Development |
| Mime type: | application/octet-stream |
| Description: | |
| CLS file is a Visual Basic Class Module. Dynamic data structures generally consist of at least some simple data storage (in our case, it will be a class module), along with a linkage to the next element in the structure. | |
| [Detailed description] [Sample not yet available] | |
| Open with: | Visual Basic |
| Program name: | |
| Related links: | |
| none | |
| Aliases: | |
| none | |
| Related extensions: | |
| dob, dox, oca, pag, pdm, pgx, vbl, vbp, vbx, vbz, wct | |
| Extension: | .class |
|---|---|
| Type: | Java Class |
| Category: | Application |
| Mime type: | application/java-vm |
| Description: | |
| CLASS files contain bytecodes for the Java Virtual Machine, Tthey are normally produced by a compiler for the Java programming language. | |
| [Detailed description] [Sample not yet available] | |
| Open with: | Java Runtime Environment |
| Program name: | |
| Related links: | |
| none | |
| Aliases: | |
| cla, cls | |
| Related extensions: | |
| cap, cod, ear, java, jnlp, jpr, jsa, jsp, jspx, jws, properties, ser, tld, tml, vm | |
Cannot open .cls files on your system?
When windows gives you an error message saying that it cannot open
.cls 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.









