Downloaded same name file and orginal file disappeared

Hi ​@FitaFPH, 

Welcome to Box Community, and glad to assist! 

Did you upload it in the same folder with the same exact file name? If the existing file has disappeared after you’ve uploaded the new file with the same file name. It probably created a new version of the file. 

To confirm, please check the file’s version history: 

File version history displays in the activity sidebar to the right of the file preview. To open this sidebar and access any file’s version history, navigate to your Box Files page and do any one of the following:

• Click the version number badge displayed to the right of the file's name. This badge is available only when multiple versions of the file exist.
  or

• Click the name of the file. Box opens the file in Preview mode. Click the more actions ellipsis (…) and then select Version History.
  or

• Click the file. In the top of the file's preview window, click the blue version number displayed to the left of the file's title.

For more details, please check out this article. 

Hope it helps! Feel free to reply if you need additional assistance.