Is there a restriction on the type of file that can be uploaded?

Yes, BAPLIE Viewer Online has file restrictions in place as a security measure.  Only files that can be uploaded to baplieviewer.com are files with the extension .txt, .edi, .mov (MOVINS) and .bap.  The validation tool will provide an error if any other file type is selected when uploading a file.

If you are looking to upload an excel (.xls or .xlsx) file, you need to use the Import Excel feature.