Information, tips and instructions


The files may get corrupted due to an operating system failure, virus attack or a poorly performed operation. A corrupt file is always useless and impossible to manage. When you face this problem, you can first try to repair the damaged files or run a virus detection program. However, if they do not work for you, you can try a program to recover damaged files.

Data recovery programs allow you to restore corrupted photos, music and videos as well as document files. With these programs you can sometimes recover damaged files that have been emptied or deleted from the recycle bin or that have been lost due to a virus attack, system failure or partition formatting.

The process of repairing damaged/deleted files can be done on any operating system, as long as you have the right software.

However, it is important to highlight the difference between recovering and repairing a file. Many times in the file recovery process it turns out that many of the recovered files are damaged or corrupt, because if you mistakenly delete a file or folder and then overwrite something in that free space, then the files that were previously will be corrupted in such a way that it can no longer be read.

If this is your case, then you must first run a lost/deleted file recovery program and then proceed to repair the file.

The following steps are usually standard for the popular operating systems, however, there could be some differences depending on the application and OS you use.

Steps to Recover Damaged Files

If the damaged files are on external hard disk or USB flash disk, please connect it to the computer and refer to the guide on how to recover deleted files from USB.

  • Open the file recovery program on your computer, select the hard drive where you have lost your corrupted files.
  • After selecting the disk where your corrupted files were located click "Start" to scan.
  • After the scanning process all candidate files for the recovery will be listed in categories. You can preview some files like the photos. You can also check if the files found are the ones you want to restore through their original names.
  • Select the files you want to restore and click "Recover" to save them again on your computer.

Recommendation: If the flash drive or hard drive where the files to be recovered are in good condition, then save the restored files back to the original path, otherwise you might have trouble restoring them or other files, if not, then choose another drive to where you can restore them.

How to Repair Damaged NUMBERS Files.

  • Run the damaged file repair program of your choice, select the "Repair Files" option to start. Select all damaged NUMBERS files from your hard drive.
  • The file repair tool will import all the selected NUMBERS files.
  • After repairing, you can preview the repaired NUMBERS files. Click on the "Save" button to save the changes.

You can avoid damage to files by checking the sectors and integrity of your hard drive from time to time. A bad sector can damage one or more files, regardless of the format or nature of that file. It can also be the case of system failures caused by newly installed hardware or drivers. You should always take precautions like backing up your files or storing them in the cloud when working with important office files.