A list contains names, email addresses, and registration fees. If only the names are sorted alphabetically, the other details stay in place and become associated with the wrong people. The error may look convincing because every individual cell still contains plausible information. Safe sorting starts by identifying which columns form a complete record and exactly which range should move.
Make the data range unambiguous
Each row should contain a complete record, and each column should have a clear heading. You do not need to delete content in preparation, but check for blank separating columns or intermediate headings inside the list. These can affect how the application detects a contiguous range.
Using the application's actual table feature can make the range clearer. Still verify that newly added columns and the final rows belong to it. Colored formatting alone does not prove that the entire area is being treated as a table.
Keep an unchanged version before a substantial reordering. If you need to restore the original order later, an additional fixed sequence column can help. It should contain values that move with each record rather than calculate a new meaning after sorting.
Distinguish the sort key from the range
The Last name column can be the sort key while every column in the list moves together. Inspect the headings and selected range in the sort dialog. If the application warns about adjacent data, read the choices carefully and ensure that related fields move as one record.
When using several criteria, their order matters. For an event, you might sort first by session and then by last name within each session. The second level does not replace the first; it orders records sharing the same first key.
Check data types as well. Numbers stored partly as text can sort differently from numeric values. An apparently incorrect order may therefore reveal inconsistent source data. Do not convert it blindly; first establish whether the values are quantities or identifiers.
Verify known relationships afterward
After sorting, verify several known combinations, such as a name with its email address and an identifier with its amount. Compare them with the unchanged copy. Inspect the first and last data rows and confirm that the header has not moved into the records.
If only one column moved, undo the sort immediately while that action is still unambiguous. Do not try to repair it by independently sorting the other columns to match; repeated values and empty fields make that unreliable. If the original relationships have been lost, return to a saved version or another reliable source.