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The Excel — List Worksheets step returns the worksheets inside an Excel file with their IDs, names, positions, and visibility. Use it to discover what worksheets exist in a file before reading or writing — typically as the first step in a loop that processes every tab.

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Prerequisites

  • The OneDrive Excel steps must be enabled on your workspace (feature flag: step-sdk-onedrive-excel).
  • A Microsoft OAuth credential with at least read access to the file.
  • The Excel file already exists at the configured Path.

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Inputs

ParameterRequiredDescription
CredentialYesThe Microsoft OAuth credential used to access the file.
PathYesThe file path in OneDrive, for example /Documents/MySpreadsheet.xlsx.

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Outputs

VariableTypeDescription
WorksheetsarrayOne entry per worksheet, in workbook order.
TotalCountintThe total number of worksheets returned.
Each worksheet entry exposes:
FieldDescription
IdThe Graph-assigned worksheet identifier.
NameThe worksheet name (the tab label in Excel).
PositionThe zero-based index of the worksheet within the workbook.
VisibilityThe worksheet’s visibility state: Visible, Hidden, or VeryHidden.
Reference the list as {{Steps.List_Worksheets.Worksheets}}.

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Examples

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1) Process every visible worksheet

  1. List Worksheets — produces an array of all worksheets.
  2. Filter step — keep only entries where Visibility == "Visible".
  3. Loop step — iterate over the filtered list and for each item:
    • Read File with Worksheet Name set to {{Steps.Loop.CurrentItem.Name}}
    • …and downstream processing.

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2) Check whether a worksheet exists before writing

  1. List Worksheets.
  2. Compare step — does {{Steps.List_Worksheets.Worksheets}} contain an entry with Name == "Today"?
    • If yes → Write Row to Today.
    • If no → Add Worksheet named Today, then Write Row.

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Notes and limitations

  • Returns worksheets in workbook order. Reorder downstream if you need a different sort.
  • Hidden worksheets are included — filter by Visibility if you only want visible tabs.
  • The step does not return cell data. Use Read File for values.