Version Ref: 6.1 (USP 6.0.02)
Syntax:
e = XL_SAVE([password])
Save the current XLSX file.
Parameters -
password : If specified, encrypt the XLSX output file using Agile
encryption (AES128).
Returns "1" on success and "-1" on error. XL_ERROR() can be called to return
the last error.
Note: Encrypted XLSX files cannot be opened with most third party programs
such as LibreOffice and OpenOffice. They are fully supported by Excel
however. The documents are saved in an encrypted CFB file.