How to Clean an Extremely Large and Slow Excel Worksheet in WPS Spreadsheets
Question details
The user needs to reduce the size and improve the performance of an Excel workbook that is extremely large and slow despite containing little visible data.

- Product
- WPS Spreadsheets for Excel workbooks
- Device & OS
- not provided
- Scenario
- A workbook with a small amount of visible data becomes slow to open, scroll, or save because hidden pictures, objects, excessive formatting, formulas, and inflated used ranges have increased its size.
- Observed behavior
- The worksheet is very large and slow, with hidden pictures, unused objects, excessive formatting, formulas, and inflated used ranges causing workbook bloat and navigation delays.
Work on a copy of the workbook and make sure no shared or read-only restriction prevents editing. Use WPS Spreadsheets to switch to each affected sheet before deleting objects so you can see what will be removed.
Delete hidden pictures and unused objects in WPS Spreadsheets
Use this when a workbook contains many invisible pictures, shapes, or objects that increase file size and slow down navigation.
Hidden objects are a common cause of Excel file bloat. Selecting all objects with Go To Special lets you remove them without manually searching each sheet.
Open WPS Spreadsheets, open the .xlsx workbook, and click the worksheet tab that is slow or appears large.
Press F5 or Ctrl+G to open the Go To dialog, click Special, choose Objects, and click OK.
Press Delete, then repeat on any other affected sheets. Save the workbook with File > Save As to keep a clean copy.

Clear excessive formatting and reset the inflated used range
Use this when the workbook is slow because formatting was applied to many empty rows or columns, or the used range extends far beyond the actual data.
Clean and Speed Up a Large Excel Worksheet in WPS Spreadsheets
Use WPS Spreadsheets to open the .xlsx workbook, remove hidden pictures and unused objects, clear inflated formatting, and save a smaller, faster file while keeping your data intact.
- 1. Open the large Excel workbook: Launch WPS Spreadsheets, click File > Open, and select the slow .xlsx workbook.
- 2. Remove all hidden pictures and objects: Press F5 or Ctrl+G, click Special, choose Objects, and click OK, then press Delete on each affected sheet.
- 3. Clear excessive formatting: Select extra rows or columns, click Home > Clear > Clear Formats to remove formatting outside the data range.
- 4. Save and verify performance: Click File > Save As, keep the .xlsx format, and confirm the file size and scroll speed are improved.

Frequently Asked Questions
Why is my Excel worksheet so large when I have very little visible data?
Hidden pictures, shapes, comments, excessive cell formatting, formulas, and an inflated used range can all increase workbook size. The visible data looks small because the bloat is in hidden objects or empty formatted cells, not visible values.
How do I delete all pictures or shapes in WPS Spreadsheets at once?
Select the sheet, press F5 or Ctrl+G to open the Go To dialog, click Special, choose Objects, and press Delete. Repeat on each affected sheet and save the workbook.
Will clearing formats remove my data in WPS Spreadsheets?
No. Home > Clear > Clear Formats removes only formatting such as fill, borders, and fonts. Use Clear All only if you intend to delete content as well.
Does WPS Spreadsheets handle large .xlsx files from Microsoft Excel?
Yes. WPS Spreadsheets opens, edits, and saves Microsoft Excel .xlsx and .xls files while preserving formulas, charts, and formatting, and it includes tools for workbook cleanup.




