Rar file doesn't work after restoring it

By cschrille
Nov 5, 2011
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  1. Hello, today i recovered an old .rar file using Restoration. When i exported the ex. rar file it has no extension. Its just called xxxx. But when I change name to xxxx.rar to open it in winrar it says "this archive is either in unknown format or damaged".
    It worked perfectly before and it has the same size as it used to, how come it wont open. Ive tried uniextract,winrar and winzip.

    Please help, thanks in advance!
  2. toxicious

    toxicious TS Rookie Posts: 18

    It is as it says "damaged". Either it isn't a rar-file, or something went wrong when backing it up/restoring it. Though I think winrar has the possibility to repair rarfiles. Try with that.
  3. cschrille

    cschrille TS Enthusiast Topic Starter Posts: 177

    I have tried with the repair thingy but it says its corrupt, even though its the same size as it used to be.
  4. cschrille

    cschrille TS Enthusiast Topic Starter Posts: 177


    Really need my files back.
  5. toxicious

    toxicious TS Rookie Posts: 18

    Some bytes probably got changed in the process of restoring the file. That is why winrar tells you that the file is corrupt, because it is.
  6. jobeard

    jobeard TS Ambassador Posts: 9,143   +595

    use the split halfs technique;

    create a new RAR file
    restore it somewhere other than the original location
    ** success says the program is just fine **
    ** failure says the program needs to be reinstalled **

    find some other RAR file than the one you're having problems with
    restore it somewhere other than the original location
    ** success again says the program is fine AND that your original rar file is corrupt
  7. cschrille

    cschrille TS Enthusiast Topic Starter Posts: 177

    Kinda forgot about this thread. I know it is corrupt but it has files inside it since it is normal size, how can i get those files that fill up the amount of data out of there.
  8. Buckshot420

    Buckshot420 TS Enthusiast Posts: 301

    Double check these.
    1)always try to use the same version of winRar to extract (If it was you that created it)
    2)Not sure of your OS but Windows 7 isn't supported by Winrar until version 3.90
    3)If no .sfv file was created or is not present, recovery is not an option
  9. sonu

    sonu TS Rookie

    Rar file doesn't work

    Your RAR files are not working means may be they are corrputed. Now there is nothing to worry about your corrupted RAR files. You can easily get them back by using Repair RAR software. This software has the ability to repair all your damaged and corrupted RAR files. It can repair rar after crc error also. It also can repair damaged password protected archive files also easily.
    Also you can download the demo version of software...
  10. bazz2004

    bazz2004 TS Evangelist Posts: 1,213   +200

    The problem with that is that the so called "free trials" don't actually fix the file. Unless you are prepared to subscribe you don't find out if it will work. As I'm dubious about the chances of success it's not an attractive option. Unless they provide a short trial of fully functioning software these adverts for rar repair software are at best misleading.

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