am using the Microsoft office 2007, recently my system was formated, after formating and installation all softwares we try to open the excel file. file not open and displaying the error message. i.e.,
"""""Excel Cannot open the file "$team..xlsx" becuase the file format or file extension is not valid. verifiy the file has not been currpted and the file extension matchs the format of the file."""
please send me a solutions.