I'm not sure if this is a LabWindows suggestion so much, but it would be convienent if there was a library function to rename a TDM/TDMS file RenameFile() won't work here, as the .tdx file has the .tdm file's name embedded in it, so a simple rename breaks the files. The only options right now are to edit the .tdx file to fix the file path, or to manually recreate the TDM file under the new name by reading then writing all the channel groups, channels, properties, etc which is tedious. Thanks.