Formatting Issues

How to Fix Excel Data Moving After Reopening a File on Mac

Olivia Miller Oct 19, 2026 868 views

Question details

The user's Excel data appears rearranged, shifted, or scrambled after reopening a workbook, often due to improper sorting, active filters, or hidden rows and columns.

How to Fix Excel Data Moving After Reopening a File on Mac

Product: Microsoft Excel
Device & OS: macOS
Scenario: Reviewing and editing a large dataset with hidden rows or columns and applying sorts or filters.
Observed behavior: Data shifts, separates from related records, or moves to incorrect rows and columns after saving and reopening the file.

Before you start

Before applying fixes or unhiding massive ranges of data, save a backup copy of your current workbook to prevent any further accidental data loss during troubleshooting.

Solution 1Recommended

Fix Data Selection and Sorting Methods

Ensure you are sorting the entire data range to prevent values in a single column from separating from their related records.

The most common reason data scrambles is sorting a single column without expanding the selection. When you do this, Excel reorganizes that column but leaves adjacent data in place, permanently breaking the relationship between rows.

Select the entire data range

Click and drag to highlight all relevant columns before sorting, or press Cmd + A to select the entire sheet.

Expand the selection

If Excel prompts you with a Sort Warning asking whether to expand the selection, always choose 'Expand the selection' to keep related data together.

Convert data to an Excel Table

Highlight your data and go to Insert > Table. Converting your data into an official table ensures that rows remain firmly locked together during all future sorts and filters.

Formatting Consistency: Ensure newly added columns use the exact same formatting and formulas as existing data to prevent erratic behavior when sorting.

Solution 2

Clear Active Filters and Unhide Rows/Columns

Hidden elements and active filters can make data appear as though it has moved, disappeared, or rearranged.

Solution 3

Update macOS and Microsoft Excel

Keep your software up to date to rule out operating system bugs or Office glitches causing display or saving errors.

Manage and Sort Large Datasets Safely with WPS Spreadsheet

Avoid data shifting issues by using WPS Spreadsheet to properly manage, sort, and filter massive datasets. WPS offers intuitive table features that lock rows together and a clear interface for revealing hidden columns.

1. Open your workbook: Launch WPS Spreadsheet and open your existing .xlsx file without worrying about format loss.
2. Convert data to a table: Select your entire data range, then go to the Insert tab and click 'Table' to lock related records securely together.
3. Safely sort your data: Use the Data tab to apply sorting. WPS Spreadsheet automatically keeps row data grouped, preventing values from splitting from their records.
4. Manage visibility easily: Unhide rows and columns by highlighting the surrounding area, right-clicking, and choosing 'Unhide'.

100% compatible with Microsoft Excel (.xlsx) formatsIntuitive sorting and filtering tools that prevent accidental data separationLightweight performance, ideal for handling thousands of rows on Mac

microsoft office alternative - wps office

Frequently Asked Questions

Why does my Excel data scramble when I try to sort it?

This usually happens when you only select a specific column instead of your entire data range. Excel sorts the selected column while leaving the adjacent unselected columns exactly where they were, which scrambles your related records. Always choose 'Expand the selection' when prompted.

Does hiding rows affect how Excel sorts data?

Yes, hidden rows can sometimes be excluded from sorts or bulk edits depending on exactly how you select the data. This causes major inconsistencies and data shifts when those rows are eventually unhidden later.

How do I ensure my rows always stay together when sorting?

The most reliable method is to convert your standard data range into an official Table. Select your data, go to Insert, and click Table. This explicitly tells the spreadsheet program that the data in each row represents a single record tied together.

Can an outdated macOS cause Excel to scramble data?

While improper user sorting is the most common cause of scrambled rows, running outdated operating systems or older versions of Office can occasionally trigger display glitches or file-saving errors. Keeping both macOS and Microsoft Excel updated is highly recommended.

Document & File Issues