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Supported File Formats

Senzo accepts three file formats for workforce data uploads.

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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.

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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.

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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.

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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

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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.