.xlsx file format
View, inspect, clean, extract, and prepare XLSX spreadsheet files directly in your browser.
Also known as: Excel
Format
.xlsx
Original files stay unchanged. Tools download a new file when output is generated.
Every tool listed here works with .xlsx files and runs in your browser. If the task you need is not here, the related formats below may cover it.
Open and preview Excel .xlsx spreadsheets in your browser.
Find and remove images from a Excel spreadsheet locally in your browser.
Find document images, preview thumbnails, and export selected images from a Excel spreadsheet.
Find hyperlinks in a Excel spreadsheet and remove selected links while keeping the file usable.
Find, inspect, copy, and export links from a Excel spreadsheet.
Find email addresses in a Excel spreadsheet and export them as clean text or CSV.
Find email addresses in a Excel spreadsheet and remove or replace them before sharing.
View and remove hidden metadata from a Excel spreadsheet before sharing.
Extract readable text from a Excel spreadsheet and copy or download it.
Find comments, notes, and annotations in a Excel spreadsheet and remove selected items.
Run a document cleanup checklist for images, links, emails, metadata, comments, and hidden content.
Rename one to .zip and you can open it. Inside are separate XML parts for each worksheet, a shared strings table holding every distinct piece of text in the workbook, styles, and any embedded images. That structure is why a tool can read an .xlsx without Excel, and why a spreadsheet's contents are much more accessible than they appear.
A cell stores both its formula and the last value Excel calculated for it. Tools that read the file without a formula engine report the cached value, which is correct as long as the workbook was saved after its last recalculation. A file saved with stale cached values will show stale numbers to any reader that does not recalculate.
Hidden rows, hidden columns, and hidden worksheets are display settings. The data is still in the XML and any recipient can unhide it. So can filtered-out rows and a pivot table's cached source data, which frequently covers a wider dataset than the summary on screen. Before sharing a workbook, unhide everything and look.
Workbooks carry document properties in the same docProps parts as Word and PowerPoint files — author, last editor, company, editing time — plus cell comments and threaded comments stored in their own parts. None of these are cleared by saving a new copy.
Yes. Because the format is ZIP-plus-XML, a browser-based viewer can read the sheets directly. No installation and no upload required.
Reading tools report the cached result Excel stored with each cell rather than re-evaluating the formula. The formula is still in the file.
No. Document properties live in separate parts of the package from the worksheet data, so cells, formulas, and formatting are untouched.
.xls is the older binary format; .xlsx is the ZIP-and-XML format introduced with Office 2007. Tools built for .xlsx generally cannot read .xls.
Background on the problems these tools solve, with worked examples.
A short pre-send checklist for PDF, Word, Excel, and PowerPoint files: what to look at, in what order, and which checks people usually skip.
Find and strip the author names, edit time, company fields, and comments that a .docx carries after Save As, and understand what Word's own cleanup misses.