> For the complete documentation index, see [llms.txt](https://beyondcompare.gitbook.io/project/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://beyondcompare.gitbook.io/project/table-compare.md).

# Table Compare

- [Quickstart: open a couple of Excel spreadsheets](https://beyondcompare.gitbook.io/project/table-compare/quickstart-open-a-couple-of-excel-spreadsheets.md)
- [Example: finding missing items in a pair of spreadsheets](https://beyondcompare.gitbook.io/project/table-compare/example-finding-missing-items-in-a-pair-of-spreadsheets.md)
- [Keys](https://beyondcompare.gitbook.io/project/table-compare/keys.md): Key columns should have values that are (somewhat) unique to a given row, such as an ID number.  Beyond Compare will give them precedence when trying to align your two tables.
- [Mismatched Columns](https://beyondcompare.gitbook.io/project/table-compare/the-columns-on-my-two-tables-dont-match.md)
- [Longer example, opening .csv files](https://beyondcompare.gitbook.io/project/table-compare/columns-file-formats-keys.md)
- [How to remove columns from a spreadsheet](https://beyondcompare.gitbook.io/project/table-compare/how-to-remove-columns-from-a-spreadsheet.md)
- [Aligned vs Unaligned](https://beyondcompare.gitbook.io/project/table-compare/aligned-vs-unaligned.md)
- [Example: List of City Trees](https://beyondcompare.gitbook.io/project/table-compare/how-to-look-at-only-one-column.md): In this example we will open a very large table of public trees in Wisconsin and sort it.