The SPL (Print Spooling File) files are those that store the list of documents that are still to be printed, that is, they are on the waiting list of the printer waiting for its turn to be printed.
It may be the case that we need to know what are those files that are still pending printing. The most traditional method is to give the icon of the printer and to show it to us with its viewfinder, but a more practical tool is this ActMask SPL Batch Converter, which allows us to convert said SPL list to other formats to arrange the pending list and View it more comfortably.
ActMask SPL Batch Converter is capable of converting it to the following PDF, TXT (plain text), TIFF, JPG, BMP, PNG, TGA or PCX formats, allowing (as its name indicates) to process several batch conversions simultaneously, and in the case of PDFs, you can establish the properties, sizes, security, etc.
You can free download ActMask SPL Batch Converter 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.