Yes!
It's pretty simple but you need to have the right tools!
It's easiest if you use a text editor that allows you to use wildcards in the find and replace search. I am using a program called textwrangler which is free in the apple app store for mac.
I am using my RF explorer with a piece of software from RF Venue called Vantage which exports Shure WWB compatible csv files. Once I've got the csv in a Shure compatible format, I open it in Textwrangler and take the following steps:
1- Use find and replace to get rid of the decimal point in the frequencies, but not in the RF levels. (This is where the wildcard find and replace comes into it's own.)
2- Use find and replace to change the comma separators into two semicolons.
3- Insert the following text directly above the numbers:
Receiver;
Date/Time;
RFUnit;dBm
Owner;
ScanCity;
ScanComment;
ScanCountry;
ScanDescription;
ScanInteriorExterior;
ScanLatitude;
ScanLongitude;
ScanName;
ScanPostalCode;
Frequency Range [kHz];XXXXXX;YYYYYY;ZZ
Frequency;RF level (%);RF level
Though note that you'll need to change XXXXXX to your scan's starting (lowest) frequency, YYYYYY to your scan's end (highest) frequency and ZZ to the size of frequency step between values in KHz. My scans all use 25KHz steps so I don't know if it will work with any other size step as WSM itself uses 25KHz steps for it's scans.
It's also important to note the RFUnit value. I have it set to dBm as that's what I get from my RF explorer. WSM defaults to dB with it's scans. If your scans give you RF level in dB change the RFUnit to dB instead.
Once that's done you'll end up with a file that looks like:
Receiver;
Date/Time;
RFUnit;dBm
Owner;
ScanCity;
ScanComment;
ScanCountry;
ScanDescription;
ScanInteriorExterior;
ScanLatitude;
ScanLongitude;
ScanName;
ScanPostalCode;
Frequency Range [kHz];450000;550000;25
Frequency;RF level (%);RF level
450000;;-110.5
450025;;-114.0
450050;;-116.0
450075;;-116.0
450100;;-116.0
450125;;-116.0
450150;;-116.0
450175;;-116.0
450200;;-116.0
450225;;-116.0
450250;;-116.0
450275;;-116.0
450300;;-116.0
450325;;-116.0
450350;;-116.0
450375;;-115.0
450400;;-116.0
450425;;-116.0
450450;;-116.0
450475;;-116.0
450500;;-116.0
450525;;-116.0
450550;;-116.0
450575;;-115.5
450600;;-116.0
etc etc... until the end of your scan.
Save this as a csv and it should import into Sennheiser's WSM no problem!
It sounds more complicated than it is. Once you know what you're doing you can make the conversion in a minute or two. It really is that straight forward. The hardest part will be learning to use wildcards in find and replace if you are not familiar with them. If you don't have a text editor that will let you use wildcards then it's a difficult proposition!
I hope this helps!