: Use the 7-Zip Official Site or WinRAR to handle .7z extensions.
: Right-click the file and select "Extract All" or "Extract to [Folder Name]" . excel.7z
: Press Ctrl + A to select all data or Shift + Space for an entire row. 2. Essential Formulas Every power user should know these "Big Seven" functions: Excel help & learning - Microsoft Support : Use the 7-Zip Official Site or WinRAR to handle