I wanted to touch base with you about this problem I have. I followed your prompts and tried but sadly it did not work. I then contacted the hosting company three different times, third time they downloaded an XML file above 10 MB and personally imported it through my Wiki and spent an hour looking and the email response is below.
I then downloaded two different utilities that supposedly "split" XML files. Both failed. I get error messages in the first (SML Splitter Net 4.0), the second one does not do anything. I have literally spent days, perhaps weeks, on and off, trying to fix this issue, which has drained emotional energy and ground parts of my Wiki to a halt. Contributors are clamoring to make some articles using templates that will not upload. It is intensely frustrating. Thanks anyway.
Response from host staffer:
"This is in relation of your call earlier pertaining on the issue importing xml file through your wiki site. Upon further checking and replicating we assume that the issue is cause by the upload limit of the application. The following error occurred even after increasing the file upload limit of the php settings on the server. So we concluded that the limit is within the application itself.
Import failed: Upload of import file failed. The file is bigger than the allowed upload size."