ImportExcel.psm1
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Add-Type -Path "$($PSScriptRoot)\EPPlus.dll" . $PSScriptRoot\Charting.ps1 . $PSScriptRoot\ConvertFromExcelData.ps1 . $PSScriptRoot\ConvertFromExcelToSQLInsert.ps1 . $PSScriptRoot\ConvertToExcelXlsx.ps1 . $PSScriptRoot\Copy-ExcelWorkSheet.ps1 . $PSScriptRoot\Export-Excel.ps1 . $PSScriptRoot\Export-ExcelSheet.ps1 . $PSScriptRoot\Get-ExcelColumnName.ps1 . $PSScriptRoot\Get-ExcelSheetInfo.ps1 . $PSScriptRoot\Get-ExcelWorkbookInfo.ps1 . $PSScriptRoot\Get-HtmlTable.ps1 . $PSScriptRoot\Get-Range.ps1 . $PSScriptRoot\Get-XYRange.ps1 . $PSScriptRoot\Import-Html.ps1 . $PSScriptRoot\InferData.ps1 . $PSScriptRoot\Invoke-Sum.ps1 . $PSScriptRoot\New-ConditionalFormattingIconSet.ps1 . $PSScriptRoot\New-ConditionalText.ps1 . $PSScriptRoot\New-ExcelChart.ps1 . $PSScriptRoot\New-PSItem.ps1 . $PSScriptRoot\Pivot.ps1 . $PSScriptRoot\Set-CellStyle.ps1 . $PSScriptRoot\TrackingUtils.ps1 . $PSScriptRoot\Update-FirstObjectProperties.ps1 if ($PSVersionTable.PSVersion.Major -ge 5) { . $PSScriptRoot\Plot.ps1 Function New-Plot { [OutputType([PSPlot])] Param() [PSPlot]::new() } } else { Write-Warning 'PowerShell 5 is required for plot.ps1' Write-Warning 'PowerShell Excel is ready, except for that functionality' } Function Import-Excel { <# .SYNOPSIS Create custom objects from the rows in an Excel worksheet. .DESCRIPTION The Import-Excel cmdlet creates custom objects from the rows in an Excel worksheet. Each row represents one object. All of this is possible without installing Microsoft Excel and by using the .NET library �EPPLus.dll�. By default, the property names of the objects are retrieved from the column headers. Because an object cannot have a blanc property name, only columns with column headers will be imported. If the default behavior is not desired and you want to import the complete worksheet �as is�, the parameter �-NoHeader� can be used. In case you want to provide your own property names, you can use the parameter �-HeaderName�. .PARAMETER Path Specifies the path to the Excel file. .PARAMETER WorksheetName Specifies the name of the worksheet in the Excel workbook to import. .PARAMETER DataOnly Import only rows and columns that contain data, empty rows and empty columns are not imported. .PARAMETER HeaderName Specifies custom property names to use, instead of the values defined in the column headers of the TopRow. In case you provide less header names than there is data in the worksheet, then only the data with a corresponding header name will be imported and the data without header name will be disregarded. In case you provide more header names than there is data in the worksheet, then all data will be imported and all objects will have all the property names you defined in the header names. As such, the last properties will be blanc as there is no data for them. .PARAMETER NoHeader Automatically generate property names (P1, P2, P3, ..) instead of the ones defined in the column headers of the TopRow. This switch is best used when you want to import the complete worksheet �as is� and are not concerned with the property names. .PARAMETER TopRow The row from where we start to import data, all rows above the TopRow are disregarded. By default this is the first row. When the parameters �-NoHeader� and �-HeaderName� are not provided, this row will contain the column headers that will be used as property names. When one of both parameters are provided, the property names are automatically created and this row will be treated as a regular row containing data. .EXAMPLE Import data from an Excel worksheet. One object is created for each row. The property names of the objects consist of the column names defined in the first row. In case a column doesn�t have a column header (usually in row 1 when �-TopRow� is not used), then the unnamed columns will be skipped and the data in those columns will not be imported. ---------------------------------------------- | File: Movies.xlsx - Sheet: Actors | ---------------------------------------------- | A B C | |1 First Name Address | |2 Chuck Norris California | |3 Jean-Claude Vandamme Brussels | ---------------------------------------------- PS C:\> Import-Excel -Path 'C:\Movies.xlsx' -WorkSheetname Actors First Name: Chuck Address : California First Name: Jean-Claude Address : Brussels Notice that column 'B' is not imported because there's no value in cell 'B1' that can be used as property name for the objects. .EXAMPLE Import the complete Excel worksheet �as is� by using the �-NoHeader� switch. One object is created for each row. The property names of the objects will be automatically generated (P1, P2, P3, ..). ---------------------------------------------- | File: Movies.xlsx - Sheet: Actors | ---------------------------------------------- | A B C | |1 First Name Address | |2 Chuck Norris California | |3 Jean-Claude Vandamme Brussels | ---------------------------------------------- PS C:\> Import-Excel -Path 'C:\Movies.xlsx' -WorkSheetname Actors -NoHeader P1: First Name P2: P3: Address P1: Chuck P2: Norris P3: California P1: Jean-Claude P2: Vandamme P3: Brussels Notice that the column header (row 1) is imported as an object too. .EXAMPLE Import data from an Excel worksheet. One object is created for each row. The property names of the objects consist of the names defined in the parameter �-HeaderName�. The properties are named starting from the most left column (A) to the right. In case no value is present in one of the columns, that property will have an empty value. ---------------------------------------------------------- | File: Movies.xlsx - Sheet: Movies | ---------------------------------------------------------- | A B C D | |1 The Bodyguard 1992 9 | |2 The Matrix 1999 8 | |3 | |4 Skyfall 2012 9 | ---------------------------------------------------------- PS C:\> Import-Excel -Path 'C:\Movies.xlsx' -WorkSheetname Movies -HeaderName 'Movie name', 'Year', 'Rating', 'Genre' Movie name: The Bodyguard Year : 1992 Rating : 9 Genre : Movie name: The Matrix Year : 1999 Rating : 8 Genre : Movie name: Year : Rating : Genre : Movie name: Skyfall Year : 2012 Rating : 9 Genre : Notice that empty rows are imported and that data for the property 'Genre' is not present in the worksheet. As such, the 'Genre' property will be blanc for all objects. .EXAMPLE Import data from an Excel worksheet. One object is created for each row. The property names of the objects are automatically generated by using the switch �-NoHeader� (P1, P@, P#, ..). The switch �-DataOnly� will speed up the import because empty rows and empty columns are not imported. ---------------------------------------------------------- | File: Movies.xlsx - Sheet: Movies | ---------------------------------------------------------- | A B C D | |1 The Bodyguard 1992 9 | |2 The Matrix 1999 8 | |3 | |4 Skyfall 2012 9 | ---------------------------------------------------------- PS C:\> Import-Excel -Path 'C:\Movies.xlsx' -WorkSheetname Movies �NoHeader -DataOnly P1: The Bodyguard P2: 1992 P3: 9 P1: The Matrix P2: 1999 P3: 8 P1: Skyfall P2: 2012 P3: 9 Notice that empty rows and empty columns are not imported. .EXAMPLE Import data from an Excel worksheet. One object is created for each row. The property names are provided with the �-HeaderName� parameter. The import will start from row 2 and empty columns and rows are not imported. ---------------------------------------------------------- | File: Movies.xlsx - Sheet: Actors | ---------------------------------------------------------- | A B C D | |1 Chuck Norris California | |2 | |3 Jean-Claude Vandamme Brussels | ---------------------------------------------------------- PS C:\> Import-Excel -Path 'C:\Movies.xlsx' -WorkSheetname Actors -DataOnly -HeaderName 'FirstName', 'SecondName', 'City' �TopRow 2 FirstName : Jean-Claude SecondName: Vandamme City : Brussels Notice that only 1 object is imported with only 3 properties. Column B and row 2 are empty and have been disregarded by using the switch '-DataOnly'. The property names have been named with the values provided with the parameter '-HeaderName'. Row number 1 with �Chuck Norris� has not been imported, because we started the import from row 2 with the parameter �-TopRow 2�. .LINK https://github.com/dfinke/ImportExcel .NOTES 2017/08/16 Added parameter sets for proper parameter validation and to make sure '-NoHeader' and '-HeaderRow' aren't used together Added try/catch clause, CmdLetBinding and verbose messages Renamed 'HeaderRow' to 'TopRow' to avoid confusion with other parameters Renamed '-Header' to '-HeaderName' Added test for duplicate property names Added test for empty worksheet Added test for no data after TopRow Fixed incorrect import when there's no value in the first column Fixed values being imported under the wrong property name in case one Fixed incorrect import in case column A is empty and B and C not ( '$Worksheet.Dimension.Columns' is unreliable because it will say 2 columns are in use while it should say 3). (Ex. Add data in cell B2 and C2, use the '-NoHeader' switch, notice P1 and P2 are incorrectly blanc.) #> [CmdLetBinding(DefaultParameterSetName)] Param ( [Alias('FullName')] [Parameter(ValueFromPipelineByPropertyName, ValueFromPipeline, Position=0, Mandatory)] [ValidateScript({Test-Path -Path $_ -PathType Leaf})] [String]$Path, [Parameter(Position=1, Mandatory)] [Alias('Sheet')] [String]$WorksheetName, [Parameter(ParameterSetName='B', Mandatory)] [String[]]$HeaderName, [Parameter(ParameterSetName='C', Mandatory)] [Switch]$NoHeader, [Alias('HeaderRow')] [ValidateRange(1, 9999)] [Int]$TopRow, [Switch]$DataOnly ) Begin { Function Add-Property { <# .SYNOPSIS Add the property name and value to the hashtable that will create a new object for each row. #> Param ( [Parameter(Mandatory)] [String]$Name, $Value ) Try { $NewRow.$Name = $Value Write-Verbose "Import cell '$($Worksheet.Cells[$R, $P.Column].Address)' with property name '$Name' and value '$Value'" } Catch { throw "Failed adding the property name '$Name' with value '$Value': $_" } } Function Get-PropertyNames { <# .SYNOPSIS Create objects containing the column number and the column name for each of the different header types. #> Param ( [Parameter(Mandatory)] [Int[]]$Columns, [Parameter(Mandatory)] [Int]$TopRow ) Try { if ($NoHeader) { $i = 0 foreach ($C in $Columns) { $i++ $C | Select-Object @{N='Column'; E={$_}}, @{N='Value'; E={'P' + $i}} } } elseif ($HeaderName) { $i = 0 foreach ($H in $HeaderName) { $H | Select-Object @{N='Column'; E={$Columns[$i]}}, @{N='Value'; E={$H}} $i++ } } else { if ($TopRow -eq 0) { throw 'The top row can never be equal to 0 when we need to retrieve headers from the worksheet.' } foreach ($C in $Columns) { $Worksheet.Cells[$TopRow,$C] | where {$_.Value} | Select-Object @{N='Column'; E={$C}}, Value } } } Catch { throw "Failed creating property names: $_" } } } Process { Try { $Path = (Resolve-Path $Path).ProviderPath Write-Verbose "Import Excel workbook '$Path' with worksheet '$Worksheetname'" $Stream = New-Object -TypeName System.IO.FileStream -ArgumentList $Path, 'Open', 'Read', 'ReadWrite' $Excel = New-Object -TypeName OfficeOpenXml.ExcelPackage -ArgumentList $Stream if (-not ($Worksheet = $Excel.Workbook.Worksheets[$WorkSheetName])) { throw "Worksheet '$WorksheetName' not found, the workbook only contains the worksheets '$($Excel.Workbook.Worksheets)'." } #region Set the top row if (((-not ($NoHeader -or $HeaderName)) -and ($TopRow -eq 0))) { $TopRow = 1 } #endregion if (-not ($AllCells = $Worksheet.Cells | where {($_.Start.Row -ge $TopRow)})) { Write-Warning "Worksheet '$WorksheetName' in workbook '$Path' is empty after TopRow '$TopRow'" } else { #region Get rows and columns if ($DataOnly) { $CellsWithValues = $AllCells | where {$_.Value} $Columns = $CellsWithValues.Start.Column | Sort-Object -Unique $Rows = $CellsWithValues.Start.Row | Sort-Object -Unique } else { $LastColumn = $AllCells.Start.Column | Sort-Object -Unique | Select-Object -Last 1 $Columns = 1..$LastColumn $LastRow = $AllCells.Start.Row | Sort-Object -Unique | Select-Object -Last 1 $Rows = $TopRow..$LastRow | where {($_ -ge $TopRow) -and ($_ -gt 0)} } #endregion #region Create property names if ((-not $Columns) -or (-not ($PropertyNames = Get-PropertyNames -Columns $Columns -TopRow $TopRow))) { throw "No column headers found on top row '$TopRow'. If column headers in the worksheet are not a requirement then please use the '-NoHeader' or '-HeaderName' parameter." } if ($Duplicates = $PropertyNames | Group-Object Value | where Count -GE 2) { throw "Duplicate column headers found on row '$TopRow' in columns '$($Duplicates.Group.Column)'. Column headers must be unique, if this is not a requirement please use the '-NoHeader' or '-HeaderName' parameter." } #endregion #region Filter out rows with data in columns that don't have a column header if ($DataOnly -and (-not $NoHeader)) { $Rows = $CellsWithValues.Start | where {$PropertyNames.Column -contains $_.Column} | Sort-Object Row -Unique | Select-Object -ExpandProperty Row } #endregion #region Filter out the top row when it contains column headers if (-not ($NoHeader -or $HeaderName)) { $Rows = $Rows | where {$_ -gt $TopRow} } #endregion if (-not $Rows) { Write-Warning "Worksheet '$WorksheetName' in workbook '$Path' contains no data in the rows after top row '$TopRow'" } else { #region Create one object per row foreach ($R in $Rows) { Write-Verbose "Import row '$R'" $NewRow = [Ordered]@{} foreach ($P in $PropertyNames) { Add-Property -Name $P.Value -Value $Worksheet.Cells[$R, $P.Column].Value } [PSCustomObject]$NewRow } #endregion } } } Catch { throw "Failed importing the Excel workbook '$Path' with worksheet '$Worksheetname': $_" } Finally { $Stream.Close() $Stream.Dispose() $Excel.Dispose() $Excel = $null } } } function Add-WorkSheet { param( #TODO Use parametersets to allow a workbook to be passed instead of a package [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [OfficeOpenXml.ExcelPackage] $ExcelPackage, [Parameter(Mandatory=$true)] [string] $WorkSheetname, [Switch] $NoClobber ) $ws = $ExcelPackage.Workbook.Worksheets[$WorkSheetname] if(!$ws) { Write-Verbose "Add worksheet '$WorkSheetname'" $ws=$ExcelPackage.Workbook.Worksheets.Add($WorkSheetname) } return $ws } function ConvertFrom-ExcelSheet { <# .Synopsis Reads an Excel file an converts the data to a delimited text file .Example ConvertFrom-ExcelSheet .\TestSheets.xlsx .\data Reads each sheet in TestSheets.xlsx and outputs it to the data directory as the sheet name with the extension .txt .Example ConvertFrom-ExcelSheet .\TestSheets.xlsx .\data sheet?0 Reads and outputs sheets like Sheet10 and Sheet20 form TestSheets.xlsx and outputs it to the data directory as the sheet name with the extension .txt #> [CmdletBinding()] param ( [Alias("FullName")] [Parameter(Mandatory = $true)] [String] $Path, [String] $OutputPath = '.\', [String] $SheetName="*", [ValidateSet('ASCII', 'BigEndianUniCode','Default','OEM','UniCode','UTF32','UTF7','UTF8')] [string] $Encoding = 'UTF8', [ValidateSet('.txt', '.log','.csv')] [string] $Extension = '.csv', [ValidateSet(';', ',')] [string] $Delimiter = ';' ) $Path = (Resolve-Path $Path).Path $stream = New-Object -TypeName System.IO.FileStream -ArgumentList $Path,"Open","Read","ReadWrite" $xl = New-Object -TypeName OfficeOpenXml.ExcelPackage -ArgumentList $stream $workbook = $xl.Workbook $targetSheets = $workbook.Worksheets | Where {$_.Name -like $SheetName} $params = @{} + $PSBoundParameters $params.Remove("OutputPath") $params.Remove("SheetName") $params.Remove('Extension') $params.NoTypeInformation = $true Foreach ($sheet in $targetSheets) { Write-Verbose "Exporting sheet: $($sheet.Name)" $params.Path = "$OutputPath\$($Sheet.Name)$Extension" Import-Excel $Path -Sheet $($sheet.Name) | Export-Csv @params } $stream.Close() $stream.Dispose() $xl.Dispose() } function Export-MultipleExcelSheets { param( [Parameter(Mandatory=$true)] $Path, [Parameter(Mandatory=$true)] [hashtable]$InfoMap, [string]$Password, [Switch]$Show, [Switch]$AutoSize ) $parameters = @{}+$PSBoundParameters $parameters.Remove("InfoMap") $parameters.Remove("Show") $parameters.Path = $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($Path) foreach ($entry in $InfoMap.GetEnumerator()) { Write-Progress -Activity "Exporting" -Status "$($entry.Key)" $parameters.WorkSheetname=$entry.Key & $entry.Value | Export-Excel @parameters } if($Show) {Invoke-Item $Path} } |