Instantiates a Uno service with the ProcessServiceManager.oService = CreateUnoService( UNO service name )For a list of available services, visit the com::sun::star Module reference page.The example below creates the function FileExists that uses the service com.sun.star.ucb.SimpleFileAccess to test if a given path is an existing file.Function FileExists(sPath as String) as Boolean Dim svcSFA as Object Set svcSFA = CreateUnoService("com.sun.star.ucb.SimpleFileAccess") Dim bExists as Boolean : bExists = svcSFA.exists(sPath) Dim bIsFolder as Boolean : bIsFolder = svcSFA.IsFolder(sPath) FileExists = bExists And Not bIsFolderEnd FunctionUNO services have an extensive online documentation in the api.libreoffice.org website. Visit the SimpleFileAccess Service reference page to learn more about the methods provided by the service used in the example above.filepicker;API serviceThe following code uses the service com.sun.star.ui.dialogs.FilePicker to show a file open dialog:Sub Main fName = FileOpenDialog ("Please select a file") Print "file chosen: "+fNameEnd SubFunction FileOpenDialog(title As String) As String res = com.sun.star.ui.dialogs.ExecutableDialogResults filepicker = createUnoService("com.sun.star.ui.dialogs.FilePicker") filepicker.Title = title If res.OK = filepicker.execute() Then files = filepicker.getSelectedFiles() FileOpenDialog=files(0) EndIfEnd Function