New Free Tool

See what is really inside your workbook.

Find hidden and “very hidden” sheets, links to other files, broken names, macros, protection, and exactly what is making the file so large.

Runs in Your Browser
Nothing Uploaded
XLSX, XLSM, XLSB

Inspect a Workbook

Formats: .xlsx, .xlsm, .xlsb, .xltx, .xltm

Click or drag a file here

Your file stays on your computer

Processed Locally Nothing Uploaded
What It Checks

Answers to “why is my file 40 MB?” and “where is this link coming from?”

Hidden Content

Lists every sheet with its visibility, including “very hidden” sheets that Excel’s Unhide menu cannot show, plus hidden defined names.

Links & Names

Shows the files your workbook links to, data connections, Power Query, and named ranges that are broken (#REF!) or point to other workbooks.

File Size Breakdown

Breaks the file into its parts and flags common causes of bloat: oversized used ranges, saved pivot data, heavy images, and runaway cell styles.

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