OfficeWorkKit← All tools / File tools
Rename files in bulk
Add a prefix and sequence number, then save renamed files in a ZIP.
01 Choose files
ALL SORTED
Download file ↓Your file is ready.
Leave blank to use the default filename. The file extension is kept automatically.
Review the new file before use. Your originals are unchanged.
Before you start
What are the file limits?
Up to 20 files, 20MB each and 50MB total. Spreadsheets: 50,000 rows, 200 columns, 1 million cells. PDFs: 300 pages total. Images: 16 megapixels each. Your device may require smaller files.
Where are my files stored?
File contents are processed in browser memory, without uploads or persistent app storage. Closing or refreshing the tab clears the work; downloaded files remain on your device.
Will the original file change?
A new file is created. Word extraction covers body text; PowerPoint extraction covers slide text. Table or shape layout and reading order may differ. ZIP extraction packages the selected entries into a new ZIP.