VB.NET

XLSX Convert Sheet to CSV

Open an Excel spreadsheet (.xlsx) and loads a sheet into a CSV object. VB.NET

Dim success As Boolean = False

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' .xlsx files are Zip archives
Dim zip As New Chilkat.Zip
success = zip.OpenZip("qa_data/excel/fakeCompanies.xlsx")
If (success = False) Then
    Debug.WriteLine(zip.LastErrorText)
    Exit Sub
End If


Dim csv As New Chilkat.Csv
Dim sheetNames As New Chilkat.StringTable
success = csv.XlsxGetSheets(zip,sheetNames)
If (success = False) Then
    Debug.WriteLine(csv.LastErrorText)
    Exit Sub
End If


If (sheetNames.Count = 0) Then
    Debug.WriteLine("There are no sheets in the .xlsx")
    Exit Sub
End If


' Get the name of the 1st sheet.
Dim sheetName As String = sheetNames.StringAt(0)

' Load the 1st sheet into the CSV.
' We could've also loaded the 1st sheet by passing an empty string for the sheet name.
success = csv.XlsxLoadSheet(zip,sheetName)
If (success = False) Then
    Debug.WriteLine(zip.LastErrorText)
    Exit Sub
End If


' The Chilkat CSV API can now be used to read, modify, or insert cells.
' ...
' ...

Dim csvStr As String = csv.SaveToString()
Debug.WriteLine(csvStr)

' Sample output:
' CompanyName,Address,City,State,Zip,Phone
' Acme Innovations LLC,7428 Westbrook Blvd,Oak Bend,IL,60514,630-555-2398
' BlueHorizon Data Systems,1850 Crestline Park Suite 210,Rivergate,CA,92814,714-555-8821
' Pinnacle Manufacturing Corp,3912 Industrial Loop,Maple Ridge,TX,77301,281-555-4477
' Evergreen Analytics Inc,1250 Highland Terrace,Stonefield,WA,98290,425-555-9914
' NovaTech Solutions Group,578 Marketview Drive,Clearwater,FL,33760,727-555-6032

' Save to a .csv file.
success = csv.SaveFile2("c:/temp/qa_output/fakeCompanies.csv","utf-8")
If (success = False) Then
    Debug.WriteLine(csv.LastErrorText)
    Exit Sub
End If