#113 · Spreadsheet Cleanup Tool

Replace Empty Cells with Value

Fill genuinely empty cells in a selected worksheet with a value you choose, then download a new workbook. The source stays on your device throughout the task.

Office File Tool

Local browser processing
row
rows
Ad space

How to use this office tool

  1. Choose the supported source file.
  2. Review the worksheet and options that apply to this task.
  3. Select Fill empty cells, inspect the bounded preview, and download the newly created result.

What this tool does

Fill genuinely empty cells in a selected worksheet with a value you choose, then download a new workbook. It leaves the original file unchanged and produces a separate result for review.

Used range → empty-cell test → filled XLSX

Browser libraries cannot reproduce every advanced Excel feature. Keep the original file and verify important output before relying on it.

Supported formats

The input formats below are supported for this focused browser workflow. Files over 50 MB are rejected to reduce browser memory pressure.

InputOutput
XLSX, XLSXLSX

Tips for better results

  • Keep an untouched copy of the source file.
  • Check the preview before downloading.
  • Open the result in your usual spreadsheet app and verify critical rows.

FAQ

Does the tool replace cells that contain zero?

No. Zero is a value and is not treated as empty.

Will it replace cells containing only spaces?

Only when Trim cell whitespace is enabled; otherwise whitespace is retained.

Can formulas that return an empty string be filled?

No. Formula cells are preserved and are not treated as physically empty.

Which area is checked for blanks?

The used range of the selected worksheet is checked.

Is my original workbook overwritten?

No. The result is downloaded as a new workbook.

Processing summary

StageBehavior
InputValidated locally
PreviewLimited rows
ExportNew file Blob

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