I'm sorry if this has been asked and answered previously, but I did a search though the forums and was unable to find an answer. I have an XLL file that I have been using for some time now. Recently I started trying to use that XLL file on a new computer and have been running into a problem. I have been able to successfully add the xll file to the add-ins list, but when I reopen excel I get an error box telling me:
The file you are trying to open, xxx, is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?
If I click "Yes" it opens up the XLL file in excel and there is a bunch of garbage in all the cells.
The XLL file was written for Excel 2007 so that is the only version of excel I have tried to use it on. I have been able to successfully get it to work on Windows XP, and Windows Vista Home. The latest try (which is the one not working) is on Windows Vista Enterprise.
The file you are trying to open, xxx, is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?
If I click "Yes" it opens up the XLL file in excel and there is a bunch of garbage in all the cells.
The XLL file was written for Excel 2007 so that is the only version of excel I have tried to use it on. I have been able to successfully get it to work on Windows XP, and Windows Vista Home. The latest try (which is the one not working) is on Windows Vista Enterprise.
