For more information on data and TM migration from SDL Trados 2007 and SDLX 2007, see the SDL Trados Studio 2015 Migration Guide.
You can use file-based translation memories in the *.sdltm format in SDL Trados Studio 2015. They are the same format that was used in all of versions of SDL Trados Studio 2009, 2011, 2014 and 2015.
You can also upgrade translation memories to the Studio format using the Upgrade Translation Memories wizard, which is launched by clicking Translation Memories view > Home tab > Upgrade Translation Memories.
See Supported TM Formats for a list of TM formats that you can upgrade.
You can upgrade and migrate the following data:
SDL TM Server SP3
SDL TM Server 2009 SP1/SP2 server-based translation memories
SDL Trados 2007 Translation Memories (file and server-based)
SDLX 2007 Translation Memories (file and server-based)
TMX Files (Version 1.4b)
SDL Trados 2007 INI Tag Settings Files (SDL Trados 2006 and SDL Trados 2007 versions)
SDLX 2007 ANL Tag Settings Files (SDLX 2007)
SDL Workbench or WinAlign Export files (*.txt)
You can migrate your tag settings by importing these files into the file type filters in Studio:
INI Tag settings rules, used in SDL Trados 2006 and SDL Trados 2007
ANL Tag setting rules, used in SDLX 2007