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I just checked a file I had - I did have difficulty with an updated tde file coming out Prep updating a Tableau file but I was able to output a csv file oup of Prep and use it to update a tableau file that I had previously created as a csv file - no problems
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Thanks. I just created a hyper file for my two data sets and was able to replace the data sets as expected. There may be an issue with the TDE format that prevents the replacement from working. I guess I will hyper files even if they are larger.