Use the Excel file as an ODBC data source (connection string info here), and your MySQL database as the destination (using their ODBC connector). What OS is your process running on?

Add-ins are special files that provide additional functionality. After downloading an add-in file, the Add-ins Manager must be used to install it. Add-ins files have extension .xla or .xlam (for Excel ...

The Excel Workbooks, Excel Add-ins, and screencasts on this site will be updated and corrected regularly so head there if you are merely looking for the latest versions of a file. As far as mistakes ...