Excel Performance Problems

How to Delete Excess Blank Rows in Excel to Improve Performance

Ayan Masood Sep 25, 2026 874 views

Question details

The user needs to remove millions of seemingly empty rows at the bottom of an Excel worksheet that are causing slow workbook performance and navigation issues.

How to Delete Excess Blank Rows in Excel Quickly

Product: Excel
Device & OS: not provided
Scenario: A formula or formatting was accidentally filled down to the bottom of the worksheet, expanding the used range to over a million rows.
Observed behavior: The workbook becomes extremely slow, inserting new rows takes too long, and the vertical scroll bar becomes virtually unusable because it accounts for millions of empty rows.

Before you start

Identify the row number where your actual data ends, as any rows below this point will be permanently deleted to restore performance.

Solution 1Recommended

Use the Go To Feature to Select and Delete Unused Rows

This is the fastest method to select and delete millions of blank rows without having to manually scroll to the bottom of the worksheet.

Scrolling manually to select millions of rows is impossible. Utilizing Excel's built-in Go To dialog allows you to instantly highlight the entire unused range so it can be deleted in one swift action.

Open the Go To Dialog

Press the F5 key on your keyboard to open the Go To dialog box.

Enter the Target Range

In the Reference field, type the range of empty rows you want to select. For example, if your actual data ends at row 49, type 50:1048576 and click OK.

Delete the Selected Rows

The entire range of excess rows will now be highlighted. Right-click on any of the selected row numbers on the far left side of the screen and choose Delete from the context menu.

Save and Reopen the Workbook

Save the workbook, close it, and reopen it. This crucial step forces the application to recalculate the actual used range and restores normal scroll bar functionality.

Use the Go To Feature to Select and Delete Unused Rows

Still experiencing slow performance?: If the workbook remains slow after deleting rows and reopening, check the active data area for heavy conditional formatting, volatile formulas, invisible named ranges, or bloated data tables.

Effortlessly Manage Large Spreadsheets with WPS Office

WPS Spreadsheet provides a lightweight and highly efficient environment for handling massive datasets. If you frequently encounter performance issues or bloated files, WPS Spreadsheet optimizes memory usage and allows you to quickly trim excess blank rows to keep your files running smoothly.

1. Open the Spreadsheet: Launch WPS Spreadsheet and open the file that is experiencing slow performance.
2. Select Excess Rows: Press F5 to open the Go To dialog, type the row range you wish to remove (e.g., 50:1048576), and hit Enter.
3. Delete the Rows: Right-click the highlighted row headers on the left and select Delete.
4. Save to Reset: Save the document to instantly shrink the file size, reset the used range, and restore fast scrolling.

Optimized memory management for handling millions of rows without freezing.Fully compatible with Microsoft Excel formats including .xlsx, .xls, and .csv.Intuitive interface for quickly clearing formatting and deleting bulk unused ranges.Free, lightweight alternative to heavy spreadsheet applications.

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Frequently Asked Questions

Why did my Excel file size suddenly increase?

Accidentally applying formatting or dragging a formula down to the very last row (row 1,048,576) drastically expands the 'used range' of the worksheet. The application saves the state of all these rows, causing the file size to bloat.

Why doesn't pressing Delete on the keyboard remove the rows?

Pressing the Delete key on your keyboard only clears the cell contents (text or numbers). It does not remove the rows themselves or their underlying formatting. You must use the Right-click > Delete option on the row headers to completely remove them.

How do I find the actual end of my data?

You can press Ctrl + End on your keyboard to jump to what the application currently considers the last active cell of your worksheet. If it jumps far below your actual data, you have excess formatted or blank rows that need to be deleted.

Do I have to close and reopen the file after deleting rows?

Yes. Spreadsheet applications often do not automatically reset the 'used range' or recalculate the scroll bar proportions immediately. Saving, closing, and reopening the file forces the software to refresh the actual used range.

Excel & Data Problems