New version of SNG Spreadsheet (2.7e)

[Tyrannosaurus]

Hey. i just downloaded this spreadsheet and it is very impressive. But wheni fire it up, it says that Macros in this workbook are disabled because the security level is high. I have no idea what Macro's are, will it work without them, or should I change some settings.

Also if i want to import from PT, should i erase my database on myself and start over? my database on myself is very innacurate from closing tourneys early all the time.

Thanks to anyone who answers these questions and the developer