You can use the CROSSJOIN
function in Excel (PowerPivot add-in required for Excel 2010 & 2013 which you can download for free from Microsoft). Details about the CROSSJOIN
function can be found on the MSDN website.
In sum, set up your base data as two (duplicate) tables table1
& table2
making sure they have different column names, then use CROSSJOIN(table1, table2)
.