You can recover deleted or lost MS Office files from a USB drive using a file recovery tool that can detect all MS Office file formats such as. How Can I Recover My Deleted or Lost MS Office Files from USB? Data loss on USB can occur due to many reasons. For example, malware, unstable USB ports, corrupted flash drives, or deleted MS Office files. Unfortunately, using the drive between multiple computers is a threat to data existing on the pen drive. This means a user might connect a USB drive to any number of computers and transfer a lot of data between them. If you are looking for methods to recover your lost or deleted MS Office documents from a USB drive then this information may as well be the perfect solution for you.USB drives are plug-and-play. Losing these files on the drive can be a nightmare especially when you no longer have the access to the original source. We often tend to save a lot of Office files like Excel files, Powerpoint presentations, and Word documents on the flash drive. However, they are vulnerable to many issues and problems that cause sensitive data loss. Though by nature, USB drives are handy and portable. USB drives or pen drives have been developed to make sure that the life of their user is simplified to a great extent in storing various files.