How to Perform Multiple Queries on an Excel Spreadsheet. Using the External Data Connection feature in Excel, you can acquire information from external sources, such as Access and SQL Server.

How to compare columns in Microsoft Excel As stated, we can use the Excel VLOOKUP function to find and match different data or find differences in two columns.

You can use Microsoft's Spreadsheet Compare tool to get a color-coded chart showing how two spreadsheets compare and what's missing or changed from one to the other.