This function is only available for the Advanced plan.
For the Standard plan, you can use this function by applying for and using the Drive option.

You can check the version history of a file and restore it to a specific version.

The version history will be saved for the following

• When you overwrite a file by uploading a file with the same name from the PC web or Drive Explorer
  However, on mobile, even if you upload a file with the same name, it is saved as a separate file with numbers such as (1) and (2) added after the file name. In this case, the version history will not be saved.
• When you save a file after editing in Drive Explorer

Version history settings

Enable version history

Each user can set whether to enable the version history for documents in My Drive at Drive Version History settings. 

Version history is saved regardless of individuals' settings and uses shared storage capacity.

File types you can restore and storage period for file versions

Only the administrator can change the settings on the file types available to restore and the storage period for file versions.

You cannot restore to a version with the storage period expired.

View version history

Restore

You can restore to a specific version in the version history if necessary. You can restore to previous versions of the file only if you have overwritten the existing file when uploading.

Also, you can only restore document and image file formats. The administrator can add or remove file formats in addition to the default ones.

Before restoring to the previous versions, you can preview the content of the files.

Delete a version

You can delete a specific version of a file. 

Version history uses shared storage capacity. You can manage the shared storage capacity by deleting the previous versions.