Ms excel file recovery

hello,
i have different types of files in my pen drive. out them it was one ms excel file also. yesterday i use my pen drive in other PC in which my drive was infected with virus. after that today i use it in my PC, but my PC has legal version of antivirus software, so it was scanned and drive was disinfected but my excel file was lost. plz help me how can recover this file. this file i was excess regular and modify it.