.. meta:: :description lang=en: xlSlim needs a modern version of Windows and Excel. Only 64-bit is supported. Software Requirements ===================== .. _DotNet8: https://dotnet.microsoft.com/en-us/download/dotnet/8.0 xlSlim requires: * Microsoft Windows 8+ * Microsoft Excel 2010+ For external Python environments, xlSlim supports: * Python 3.7 * Python 3.8 * Python 3.9 * Python 3.10 * Python 3.11 * Python 3.12 xlSlim v 1.0 to v 4.0.2 ----------------------- xlSlim requires: * Microsoft .Net Framework 4.8+ xlSlim v 5.0+ ------------- xlSlim requires: * Microsoft .Net 8.0+ (You can run `dotnet --list-runtimes` to see which .Net runtimes are installed.) xlSlim needs Microsoft.NETCore.App 8.x and Microsoft.WindowsDesktop.App 8.x The runtimes may be downloaded from `DotNet8`_. The .Net Desktop Runtime is the required download. .. note:: xlSlim is **64-bit only**. It will only work with 64-bit Excel and Python.