I am working on a package sent by the client on a Mac (with the virtual machine paralells and windows and esxcel installed there). I tried to convert an excel file to sdl tb format as suggested by the SDL Manual used by the client. But I could only generate the formats: xdt, xml (as html file) and xdt.log. According to the help menu of the glossary converter the xml format can be used to be uploaded in Multiterm as glossary. But when I upload the xdt format in the term base section I get this the above message. Any idea. Had a look at other similar questions, but I did not get any further there.