Hello guys, long time lurker here.
I have a very specific problem, that is really annoying and I don't know what I can still do about it.
I am working with the latest PowerBi Desktop Version.
My task is really simple, I have 3 excel documents with various tabs, that I join together to one big MasterTable.
The catch: The source excel files are on a FideAS driver which is for strictly confidential data.
I prepared all the files, which means I basically created new excel files and more or less copied (values) from the original files to the new ones that I want to work with. (I did that to ensure I dont have any commments, hyperlinks and whatnot in my cells)
From here the the issues begin. After I just read in the 3 excel files, PowerBi will sometimes throw the message "The input couldn't be recognized as a valid Excel document". The weird thing is, it is never the same file it got the issue with. Sometimes it is all 3 files, sometimes it's only 1 or 2 of them. So only after so many "refreshes" he will finally accept all of them, successuflly loading my data.
The real issue occurs after I joined my tables. After I joined all my tables, PowerBi requires the accept all changes, updating all tables again. From here I always get the above message. Here is an example:
It's in german. Again, everytime I refresh the data or repeat the process to accept the changes, I get these messages with different files. The only difference now is, that until now, I never got it running once, while it worked with just the source files sometimes.
What is happening here? My guess is, that it has something to do with the FideAS driver, because when I do the same thing from above while having the source files on my desktop it works everytime!
Which means to me it can not be that the excile file itself is corrupt or anything.
I hope someone can help me, because this is really frustrating. I tried clearing caches, the files are not corrupt, and my model is working as long as I work only on my desktop.
Best wishes