Unimportable TAB delimited file

I have a TAB delimited file which fails to import every time I try. I am not sure if my failure is due to the size of the file which is 109 Mb. I get the standard POP UP dialog box stating:

Import operation failed. The most likely reason is there are unimportable cells in the selection. Try adding a rule in the toolstrip to convert unimportable cells into numbers.

I do not know how to add the RULE described above. Does anyone have any suggestions?

[Walter Roberson]

Have you tried using readtable() to import it?

[Jeff]

NO, but I'll give it a shot. I noticed in the IMPORT DATA tool that all of the cells below row 1000 are greyed out so I am not sure what that means.

[Jeff]

I get the following error using readtable():

readtable(Pharmonics); Undefined function or variable 'Pharmonics'.

'Pharmonics' is not yet in my working directory because I have not yet imported it. I tried the HELP menu for readtable() and the reply is "NO results for readtable." So what else?

[Walter Roberson]

readtable('Pharmonics') -- provided you have R2013b or later

Answer 1

[Jeff]

I found a computer with significantly more memory & was able to import the file. So solved.