I have a file that was provided by an instructor, along with all the excel files. (SAS University Edition) When I run the program on my system, I receive the error that the file does not exist. I can open it in excel. I thought perhaps the file was corrupted so reloaded everything, but still the same error. I didn't want to hold the class up as the same program worked for everyone else, so I'm thinking there must be a "permission" issue somewhere? This is only my first day working with SAS, so any help would be appreciated. Here is the code that we were given:   LIBNAME mn "/folders/myfolders/mn"; *assign libref to ginny's january 2018 excel file; LIBNAME ginny_j XLSX "/folders/myfolders/mn/ginny_jan2018.xlsx"; *create data set dls.ginny_act_jan2018: contains january 2018 activities data; DATA mn.ginny_act_jan2018; SET ginny_j.activities; RUN; LIBNAME ginny_j CLEAR;   Output: 1 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK; 72 73 LIBNAME mn "/folders/myfolders/mn"; NOTE: Libref MN was successfully assigned as follows: Engine: V9 Physical Name: /folders/myfolders/mn 74 75 *assign libref to ginny's january 2018 excel file; 76 77 LIBNAME ginny_j XLSX "/folders/myfolders/mn/ginny_jan2018.xlsx"; NOTE: Libref GINNY_J was successfully assigned as follows: Engine: XLSX Physical Name: /folders/myfolders/mn/ginny_jan2018.xlsx 78 79 *create data set dls.ginny_act_jan2018: contains january 2018 activities data; 80 81 DATA mn.ginny_act_jan2018; 82 SET ginny_j.activities; ERROR: File GINNY_J.activities.DATA does not exist. 83 RUN;   NOTE: The SAS System stopped processing this step because of errors. WARNING: The data set MN.GINNY_ACT_JAN2018 may be incomplete. When this step was stopped there were 0 observations and 0 variables. WARNING: Data set MN.GINNY_ACT_JAN2018 was not replaced because this step was stopped. NOTE: DATA statement used (Total process time): real time 0.02 seconds cpu time 0.00 seconds I appreciate your help!   ... View more