Can an Excel file, opened from a USB flash drive, edited but not copied to the computer, be accessed after flash drive removal?
If I open an Excel file on my private computer with Windows installed, from a USB flash drive, edit it and save it to the flash drive but do not copy it to the computer, can then someone access or retrieve that file from my computer after I remove the flash drive?
If yes, then please tell me what to do to avoid someone from accessing it.
Best Answer
Can someone access or retrieve that file from my computer after the the flash drive is removed?
Yes.
Excel creates Autosave files (if configured to do so) and other temporary files. These files are deleted after Excel is closed but can be "undeleted" using data recovery tools.
See Recovering Excel documents that were closed without saving for more information.
Recovery of MS Excel Content from Temp Files
Source Recovery of MS Excel Content from Temp Files