About Excel → CSV Online
Convert an .xlsx workbook sheet to CSV. This developer tool runs on TheFatBaby’s production platform with the same credit wallet as /v1/sheets/xlsx-to-csv. Successful runs typically use about 1 credit. Sign in to process file jobs, download results before retention expires, and call the matching REST endpoint when you are ready to automate.
How to use
- Upload a file (.xlsx,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet).
- Configure Sheet name (optional).
- Click Process and wait for the sync result.
- Download or copy the output from the page.
Features
- Fast browser processing
- Accepts .xlsx,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
- API: POST /v1/sheets/xlsx-to-csv
- Shared FatBaby credits and auth
Supported formats
.xlsx,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Use cases
- Use Excel → CSV for quick developer checks without installing CLI tools
- Copy results into your editor or pipeline
- Call the matching FatBaby REST endpoint when embedding in a product
Privacy and credits
Temporary outputs expire on a short retention window. Track usage from the dashboard ledger. Pricing is the same for tools and API calls that share an operation.
Related tools
Category: developer tools · Related API · Documentation
Automate with the API
Ready to ship? Authenticate with Authorization: Bearer fb_live_… against https://www.thefatbaby.com/api. Official SDKs are under Developers → SDKs.
FAQ
How many credits does this use?
About 1 credit per run (same rate as the public API).
Do I need an account?
Yes for file tools. Sign in with your FatBaby dashboard account — no API key paste required.
Where are uploaded files stored?
Temporary processing files are cleaned up on a short retention window (typically within 24 hours). Do not upload secrets you cannot afford to expose.
Do I need an account?
Yes for file tools. Sign in with your FatBaby dashboard account — no API key paste required in the browser.