https://communities.sas.com/t5/SAS-Programming/ERROR-Width-specified-for-format-F-is-invalid/m-p/20538#M3221 what is format F? Tue, 24 Nov 2009 16:07:10 GMT abdullala 2009-11-24T16:07:10Z https://communities.sas.com/t5/SAS-Programming/ERROR-Width-specified-for-format-F-is-invalid/m-p/20536#M3219 I am write build a fixed length file and outputting using a put statement in a data step.<BR /> for ex: variable xyz at 20-30 position<BR /> put wyz 20-30;<BR /> it gives me error message "Width specified for format F is invalid". I checked for variable names and it is correct. Please advise.<BR /> Thanks,<BR /> APS Fri, 20 Nov 2009 21:15:01 GMT https://communities.sas.com/t5/SAS-Programming/ERROR-Width-specified-for-format-F-is-invalid/m-p/20536#M3219 deleted_user 2009-11-20T21:15:01Z https://communities.sas.com/t5/SAS-Programming/ERROR-Width-specified-for-format-F-is-invalid/m-p/20537#M3220 Share all of your DATA step code. Also, check your SAS variables in your file using PROC CONTENTS.<BR /> <BR /> <BR /> Scott Barry<BR /> SBBWorks, Inc. Fri, 20 Nov 2009 22:12:52 GMT https://communities.sas.com/t5/SAS-Programming/ERROR-Width-specified-for-format-F-is-invalid/m-p/20537#M3220 sbb 2009-11-20T22:12:52Z https://communities.sas.com/t5/SAS-Programming/ERROR-Width-specified-for-format-F-is-invalid/m-p/20538#M3221 what is format F? Tue, 24 Nov 2009 16:07:10 GMT https://communities.sas.com/t5/SAS-Programming/ERROR-Width-specified-for-format-F-is-invalid/m-p/20538#M3221 abdullala 2009-11-24T16:07:10Z