Spreadsheet viewer support in Dropbox DocSend

Updated Dec 10, 2025

In this article

Overview

Spreadsheets can be previewed in the DocSend document viewer without link recipients having to download them first. This provides a more secure way to share your sensitive data that lives in spreadsheets.

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Note: Spreadsheets must be 40 MB or smaller to preview them in the DocSend document viewer. 

Features

  • Uploading spreadsheets:
    • Spreadsheets can be uploaded from local devices and cloud storage providers, similar to other file types you upload and send via DocSend.
    • Supported formats include Excel (.xls, .xlxs, .xlsm), Google Sheets (.gsheet), Open Document Spreadsheets (.ods), and .csv.
  • File size support and availability:
    • If the file size is smaller than 40 MB, it will be available in the viewer.
    • Spreadsheets over 40 MB can only be shared as download-only files, and you will be notified if a file exceeds this limit.
  • Preview and functionality:
    • The preview functionality mirrors the experience provided by the Dropbox viewer for spreadsheets, supporting all features available in Microsoft Excel 2016.
    • Only the end cell values are displayed, and the viewing of formulas is not supported.
    • Multiple sheets within a spreadsheet are supported, and users can navigate between them using tabs at the bottom of the viewer.
  • Link creation:
    • The "allow downloading" option for spreadsheets is unchecked by default in the create link section.
    • Note: Watermarking is currently unavailable for spreadsheets.
  • Analytics:
    • Spreadsheets are treated as paginated documents, where each sheet represents a page.
    • Instead of page numbers, sheet names are used and displayed to track viewer behavior by sheet.
    • Cell-level analytics are not available, which means specific user interactions with individual cells cannot be tracked.

Limitations

  • 40 MB viewable file size:
    • Spreadsheets larger than 40 MB cannot be displayed and will be download-only.
    • Once processed, documents can’t change from download-only to downloadable and vice versa. Examples:
      • If you have a 50 MB sheet in DocSend, then update the document with a 10 MB sheet, it will remain download-only.
      • If you have a 10 MB sheet and update it with a 50 MB sheet, it will generate an error.
  • 2 GB upload limit:
    • Spreadsheets over 2 GB cannot be uploaded, which aligns with the limit for other paginated document types.
  • Viewer limited to MS Excel 2016 features:
    • The viewer supports features available up to Microsoft Excel 2016. Features introduced after 2016 may not appear in the viewer or may cause errors when loaded.
    • This limitation is consistent with Dropbox's spreadsheet support.
  • No watermarking:
    • Watermarking is not available for spreadsheets.
  • Viewer limitation for certain fields:
    • Some fields may not be visible in the viewer and will display as ######.
    • To ensure visibility, you’ll need to adjust column sizes in the file before uploading.
  • Alternate file extensions for processing issues: 
    • In some cases, a sheet may fail to process. Using a different extension may fix this issue. Example: 
      • If you upload an .xlsx file and it fails to process, downloading it as an .ods file from Google Sheets and uploading it again may solve the issue.  
  • Hidden column considerations: 
    • Hiding columns can sometimes cause the adjacent column to be hidden instead.
  • Pivot table complications in certain formats: 
    • Pivot tables may not work in Excel's .xls, .xlsx, or .xlm formats. To fix this, upload the file as an .ods file instead.
  • Compatibility with newer spreadsheet versions:
    • When converting a spreadsheet to HTML from Microsoft Office 2016, some features in newer versions may not be converted correctly. 
    • To fix this, make the document version 2016 compatible.
  • Handling large spreadsheets: 
    • Very large spreadsheets can crash the iframe after loading many rows/columns. 
    • The only workaround is to split the spreadsheet into smaller files.
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