Ask User - File Location and Run transformation

Can you post here variable name ans full path to the file please

PS: Instead of using variable you can always copy the file and load the data from the copy of the file instead
 

I can see from the video that you are using mask and the mask is the file name variable.

It is not working because you are using incorrect mask

*.txt is a correct mask
c:\data\directory\data.txt is incorrect mask

*.txt is a correct mask, I was able run transformation . 

This worked, I also need to pass subdirectory also properly , will try and udpate