We've been using RingCentral for quite a few years faxing attachments using Outlook - primarily Word and PDF documents. I'm going to be rolling this out in a department that uses Excel quite a bit. Are there any gotchas faxing Excel spreadsheets as attachments?
We support the following Excel file extensions: xls, xlsx, xlsb, xlsm. These in the following versions of Excel. 5, 95, 97, 2000, 2003, 2007, 2010. NOTE: Macro-enabled files that require a macro to execute for the file to open are not supported.