Spire.XLS for Python 16.6.0 supports configuring licenses via environment variables

Spire.XLS for Python 16.6.0 supports configuring licenses via environment variables

2026-06-18 02:51:00

We're pleased to announce the release of Spire.XLS for Python 16.6.0. This version supports configuring licenses via environment variables, and optimizes the SaveToPdf() method. Details are listed below.

Here is a list of changes made in this release

Category ID Description
Optimization - Removed the FileFormat parameter from the Worksheet.SaveToPdf() method.
Before: SaveToPdf(filename, fileformat)
After: SaveToPdf(filename)
New Feature - Added support for configuring licenses via environment variables, with automatic recognition and loading of the following three variables:
SPIRE_OFFICE_LICENSE_KEY
SPIRE_XLS_LICENSE_KEY
SPIRE_LICENSE_KEY
Click the link to download Spire.XLS for Python 16.6.0: