To cross-reference between spreadsheets, you must identify cells using extended addresses. These extended references specify the cell's sheet as well as its column and row.

Splitting data into multiple columns isn't the only way to rearrange data in Excel. For example, you could merge data from two columns into one column, split alternate rows into two columns, or ...

You can combine two columns in Excel using several formulas and tools available in the software. Here's how to combine two columns in Excel.