> ## Documentation Index
> Fetch the complete documentation index at: https://docs.senzohq.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Supported File Formats

> CSV and Excel formats accepted by Senzo

# Supported File Formats

Senzo accepts three file formats for workforce data uploads.

## CSV (.csv)

Comma-separated values. The preferred format for most uploads.

**Requirements:**

* UTF-8 encoding (standard for most exports)
* Comma as delimiter (not semicolon or tab)
* Column headers in row 1
* No merged cells

**Typical sources:** HRIS exports, scheduling system exports, manual spreadsheets saved as CSV.

## Excel (.xlsx)

Modern Excel workbook format.

**Requirements:**

* Data on the first sheet (Sheet1)
* Column headers in row 1
* No merged cells
* No charts or pivot tables embedded in the data sheet

**Note:** Senzo reads only the first worksheet. If your data is on a different sheet, move it to Sheet1 before uploading.

## Excel Legacy (.xls)

Older Excel format supported for compatibility. Converts to `.xlsx` internally during processing.

Same requirements as `.xlsx`.

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## File size limit

Maximum file size: **50MB**. Files larger than this should be split by date range:

* Upload Jan–Jun as one file
* Upload Jul–Dec as a second file

Both files can cover the same units and provider types — Senzo merges them correctly.

***

## What Senzo does not support

* **PDF exports** — not supported, convert to CSV first
* **Multi-sheet Excel files** — only Sheet1 is read
* **Zipped files** — upload the raw CSV or Excel, not a zip archive
* **Google Sheets direct link** — export to CSV or Excel first

***

## Tips for clean exports

Most HRIS and scheduling systems let you export to CSV or Excel. When exporting:

1. Export at the **monthly period level** — one row per month per unit/provider type
2. Include as many fields as possible — more fields enable more metrics
3. Avoid including summary or total rows — Senzo detects and removes them but it's better practice to exclude them
4. Ensure date fields are formatted consistently

If your system exports in a format Senzo doesn't immediately recognize, the AI analyzer will detect the structure and propose a mapping automatically.