>>>I would do

append from (m.tcFileName) delimited with tab

from command window and hit escape key.
>>>
>>Hi Sergey,
>>
>>I want to implement it in a program, so the user can decide, do we want to append or we need to adjust table structure. I'm thinking about low-level, but it seems like too much work...
>>
>< snip >
>Not really

lnFile = FOPEN(m.tcFileName)
>lcBuffer = FREAD(lnFile, 32*1024)  && 32K
>FCLOSE(lnFile)
>* Get read of the last incomplete record
>lcBuffer = LEFT( lcBuffer, RAT( CHR(13)+CHR(10), lcBuffer) + 1)
>Strtofile( lcBuffer, < temp file >)
>

Great, will do it on Monday. Happy Holidays to you and all UTrs!