Error message - Fatal crash

[markw]

I received this error message when trying to export urldata.csv.

Fatal error: Maximum execution time of 600 seconds exceeded in c:\program files\firstspot\authserv\common_functions.php on line 1029

I subsequently successfully exported the file and it had 46,000 entries (about 3.2Mb)

I know it is a time error but what would cause the export to take so long - there were only three users on the system at the time.

Thanks