diff --git a/all.sas b/all.sas
index d21d5e1..c2a2389 100644
--- a/all.sas
+++ b/all.sas
@@ -3775,7 +3775,7 @@ run;
 
 %mend mp_chop;
 /**
-  @file mp_cleancsv.sas
+  @file
   @brief Fixes embedded cr / lf / crlf in CSV
   @details CSVs will sometimes contain lf or crlf within quotes (eg when
   saved by excel).  When the termstr is ALSO lf or crlf that can be tricky
@@ -3783,14 +3783,16 @@ run;
   This macro converts any csv to follow the convention of a windows excel file,
   applying CRLF line endings and converting embedded cr and crlf to lf.
 
-  usage:
+  Usage:
 
       fileref mycsv "/path/your/csv";
       %mp_cleancsv(in=mycsv,out=/path/new.csv)
 
-  @param in= provide path or fileref to input csv
-  @param out= output path or fileref to output csv
-  @param qchar= quote char - hex code 22 is the double quote.
+  @param in= (NOTPROVIDED) Provide path or fileref to input csv. If a period is
+    found, it is assumed to be a file.
+  @param out= (NOTPROVIDED) Output path or fileref to output csv.  If a period
+    is found, it is assumed to be a file.
+  @param qchar= ('22'x) Quote char - hex code 22 is the double quote.
 
   @version 9.2
   @author Allan Bowe
@@ -3832,9 +3834,14 @@ run;
     else do;
       /* outside a quote, change cr and lf to crlf */
       if inchar='0D'x then do;
+        crblank:
         put '0D0A'x;
         input inchar $char1.;
-        if inchar ne '0A'x then do;
+        if inchar='0D'x then do;
+          /* multiple CR indicates CR formatted file with blank lines */
+          goto crblank;
+        end;
+        else if inchar ne '0A'x then do;
           put inchar $char1.;
           if inchar=qchar then isq = mod(isq+1,2);
         end;
diff --git a/base/mp_cleancsv.sas b/base/mp_cleancsv.sas
index 25b44e2..6209851 100644
--- a/base/mp_cleancsv.sas
+++ b/base/mp_cleancsv.sas
@@ -1,5 +1,5 @@
 /**
-  @file mp_cleancsv.sas
+  @file
   @brief Fixes embedded cr / lf / crlf in CSV
   @details CSVs will sometimes contain lf or crlf within quotes (eg when
   saved by excel).  When the termstr is ALSO lf or crlf that can be tricky
@@ -7,14 +7,16 @@
   This macro converts any csv to follow the convention of a windows excel file,
   applying CRLF line endings and converting embedded cr and crlf to lf.
 
-  usage:
+  Usage:
 
       fileref mycsv "/path/your/csv";
       %mp_cleancsv(in=mycsv,out=/path/new.csv)
 
-  @param in= provide path or fileref to input csv
-  @param out= output path or fileref to output csv
-  @param qchar= quote char - hex code 22 is the double quote.
+  @param in= (NOTPROVIDED) Provide path or fileref to input csv. If a period is
+    found, it is assumed to be a file.
+  @param out= (NOTPROVIDED) Output path or fileref to output csv.  If a period
+    is found, it is assumed to be a file.
+  @param qchar= ('22'x) Quote char - hex code 22 is the double quote.
 
   @version 9.2
   @author Allan Bowe
@@ -56,9 +58,14 @@
     else do;
       /* outside a quote, change cr and lf to crlf */
       if inchar='0D'x then do;
+        crblank:
         put '0D0A'x;
         input inchar $char1.;
-        if inchar ne '0A'x then do;
+        if inchar='0D'x then do;
+          /* multiple CR indicates CR formatted file with blank lines */
+          goto crblank;
+        end;
+        else if inchar ne '0A'x then do;
           put inchar $char1.;
           if inchar=qchar then isq = mod(isq+1,2);
         end;
diff --git a/tests/base/mp_cleancsv.test.sas b/tests/base/mp_cleancsv.test.sas
new file mode 100644
index 0000000..dc9c2d0
--- /dev/null
+++ b/tests/base/mp_cleancsv.test.sas
@@ -0,0 +1,43 @@
+/**
+  @file
+  @brief Testing mp_cleancsv.sas macro
+  @details Credit for test 1 goes to
+  [Tom](https://communities.sas.com/t5/user/viewprofilepage/user-id/159) from
+  SAS Communities:
+https://communities.sas.com/t5/SAS-Programming/Removing-embedded-carriage-returns/m-p/824790#M325761
+
+  <h4> SAS Macros </h4>
+  @li mf_nobs.sas
+  @li mp_cleancsv.sas
+  @li mp_assert.sas
+  @li mp_assertscope.sas
+
+**/
+
+/* test 1 - cope with empty rows on CR formatted file */
+
+filename crlf "%sysfunc(pathname(work))/crlf";
+filename cr "%sysfunc(pathname(work))/cr";
+data _null_;
+  file cr termstr=cr ;
+  put 'line 1'///'line 4'/'line 5';
+run;
+
+%mp_assertscope(SNAPSHOT)
+%mp_cleancsv(in=cr,out=crlf)
+%mp_assertscope(COMPARE)
+
+/* 5 rows as all converted to OD0A */
+data test1;
+  infile "%sysfunc(pathname(work))/crlf" lrecl=100 termstr=crlf;
+  input;
+  list;
+run;
+
+%put test1=%mf_nobs(test1);
+
+%mp_assert(
+  iftrue=(%mf_nobs(work.test1)=5),
+  desc=Checking blank rows on CR formatted file,
+  outds=work.test_results
+)