I am working on an upgrade from S100 v15 ADV, I am scrubbing the v15 directory to remove junk like .OLD files. I am seeing a few large files starting with ""X"" followed by a number then ending in .00 (example X070380.00) in the MAS_XXX\ARXXX. I have seen where Sage will make a segmented file ending in .001, .002 etc when a data file gets large. Does anyone know what these files I am seeing that start with an ""X"" and end in .00 are? Are they safe to remove? @AlnoorCassim