A workbook that was 200 KB last year is 40 MB now, and nobody knows why. Drop it on the window: the app shows what its size is made of, then writes a smaller copy and checks it. Your original is never changed.
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Windows only. Free to download. Your files stay on this PC and the app makes no network connection of its own.
Before anything is written, each file shows what its size is made of: sheet data, pictures, format table, text, shapes and more. Under the bar the app lists what it found: empty cells that carry a format nobody can see, formats no cell uses, broken names, and pictures with their size.
After writing, the app checks the new file: it reads as a package, has the same number of sheets, every cell that holds a value or formula is in the same place with the same value, every relationship points at a part that exists, and every cell refers to a format that exists. This compares file contents; it is not a look in Excel. If a file does not pass, nothing is kept and the original is untouched. A file with nothing worth removing is reported as such and no copy is written.
Each cleanup can be switched on or off: empty cells and rows whose only content is a format you cannot see, formats no cell, row or column uses, names whose whole target is gone (#REF!), the calc chain, and printer-specific settings (off by default). Pictures: keep, standard (longest side 1,600 px, JPEG quality 82) or strong (1,024 px, quality 70). Cells with a value or formula are never removed.
No. A new file named name_small.xlsx is written next to it, or in a folder you pick. The original is never changed or overwritten.
After writing, the app checks that the new file reads as a package, has the same number of sheets, and that every cell with a value or formula is in the same place with the same value. If it does not pass, nothing is kept. The check compares file contents; it is not a look in Excel.
Empty cells and rows whose only content is a format you cannot see, formats nothing uses, names whose whole target is gone (#REF!), the calc chain, optionally printer-specific settings, and it can shrink pictures. Each one can be switched off.
No. It works with .xlsx files directly, including ones saved by Excel.
The free edition handles up to 3 files per run, with every option. The full edition removes the limit.
Password-protected files, .xls, .xlsb and macro workbooks (.xlsm). The app names them and skips them.
No. Files stay on this PC and the app makes no network connection of its own.
Get Reduce xlsx File Size on the Microsoft Store
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