What are you tyring to import: a catalog, data between Episerver websites? Also, which version of the product are you using?
I don't think there is any size limit for the Episerver package but please provide full detail that what you are trying to import a media file, Episerver data package or media data etc...
I tried to import/upload and verify the file but I get the following message: The resource you are looking for has been removed, had its name changed, or is temporarily unavailable. The messages shows when the upload process is 99%.
The full export is 154MB. It seems that the file is too large because smaller files are imported succesfully.
What is the limit of an file that needs to be imported and can I change the maximum size?