Sample code for 30+ languages & platforms
Xbase++ Requires Chilkat v11.3.0+

XLSX Convert Sheet to CSV

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

Chilkat Xbase++ Downloads

Xbase++
LOCAL nSuccess
LOCAL oZip
LOCAL oCsv
LOCAL oSheetNames
LOCAL cSheetName
LOCAL cCsvStr

nSuccess := 0

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

//  .xlsx files are Zip archives
oZip := CreateObject("Chilkat.Zip")
nSuccess := oZip:OpenZip("qa_data/excel/fakeCompanies.xlsx")
IF (nSuccess == 0)
    ? oZip:LastErrorText
    oZip:destroy()
    RETURN
ENDIF

oCsv := CreateObject("Chilkat.Csv")
oSheetNames := CreateObject("Chilkat.StringTable")
nSuccess := oCsv:XlsxGetSheets(oZip, oSheetNames)
IF (nSuccess == 0)
    ? oCsv:LastErrorText
    oZip:destroy()
    oCsv:destroy()
    oSheetNames:destroy()
    RETURN
ENDIF

IF (oSheetNames:Count == 0)
    ? "There are no sheets in the .xlsx"
    oZip:destroy()
    oCsv:destroy()
    oSheetNames:destroy()
    RETURN
ENDIF

//  Get the name of the 1st sheet.
cSheetName := oSheetNames: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.
nSuccess := oCsv:XlsxLoadSheet(oZip, cSheetName)
IF (nSuccess == 0)
    ? oZip:LastErrorText
    oZip:destroy()
    oCsv:destroy()
    oSheetNames:destroy()
    RETURN
ENDIF

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

cCsvStr := oCsv:SaveToString()
? cCsvStr

//  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.
nSuccess := oCsv:SaveFile2("c:/temp/qa_output/fakeCompanies.csv", "utf-8")
IF (nSuccess == 0)
    ? oCsv:LastErrorText
    oZip:destroy()
    oCsv:destroy()
    oSheetNames:destroy()
    RETURN
ENDIF

oZip:destroy()
oCsv:destroy()
oSheetNames:destroy()