Database file problem

[Sitt]

I'm trying to install an old database file into a CRM called Maximizer 9 but the old database file is a SLX_dat.mdf file and the CRM only seems to be able to import files such as csv, tab delimited, dbase and XML.
How do I open the SLX_dat.mdf file to enable me to save it to one of the above formats?

 

[Sitt]

I have never used SQL before so I'm a little lost here...
If I download SQL Server Express and open the mdf file in that i pressume that i can save it from there???