I think that should be possible, but will take a bit of editing. BIAB has a "save special" whereby a BIAB song can be saved as a text file. It will look as shown in example below. So what you need to do is save your selected Exel chords as a "Text" file. Then edit the text file to the syntex of BIAB and copy all using the BIAB "Paste Special" to import the chords into BIAB. You don't need all the parts. You can Paste Special only the [Chords] section if you want. Of course there may be other ways but this could be a start.

Quote
[Song] [Title Always on my mind]
[File Always on my mind.SGU]
[Key G ] [Tempo 90] [Form 1-68*1]
[.Sty _WESTPNO.STY] [Style Subdued Country Stride]
[Summary]
****** Song Summary *************
Title: Always on my mind
File:Always on my mind.SGU
Key=G , Tempo 90, Length (m:s)=3:11
No intro. 68 bar chorus, from bar 1 to bar 68. Repeat x1 chorus
No Melody
No Soloist track.
Song is saved with Volume, Pan, Reverb, Chorus, Bank0,
Style is _WESTPNO.STY (Subdued Country Stride)

RealTracks in style: ~2474:Bass, Acoustic, Held Ev 085
RealTracks in style: 2045:Piano, Acoustic, Solo-Accompaniment CountryPopJohn Ev 085
RealDrums in style:NashvilleEven8^1-a:Sidestick, HiHat , b:Snare, Ride

*******************
[SummaryEnd]
[Chords]
|a) G| D/F#| Em| C| G| D/F#| Em| C|
|a) G| D/F#| Em| C| G| D/F#| Em| A7|
|b) C| G/B| C C/B| Am| D| G| C D| G|
|a) G| D/F#| Em| C| G| D/F#| Em| A7|
|b) C| G/B| C C/B| Am| D| G| C D| G|
|a) G G/F#| Em Em/D| C G/B| Am D| G G/F#| Em Em/D| C G/B| Am D|
|a) G| D/F#| Em| C| G| D/F#| Em| A7|
|b) C| G/B| C C/B| Am| D| G| C D| G|
| D| G| C D| G|end) G|
[ChordsEnd]
[Lyrics]
| | | | | | | | |
| Maybe I didn't | love you | Quite as often as I | could have | Maybe I didn't | treat you | Quite as good as I | should have |
| If I made you feel | second best | Girl I'm sorry I was | blind | You were always on my | mind | You were always on my | mind |
| And maybe I didn't | hold you | All those lonely, lonely | times | I guess I never | told you | I'm so happy that you're | mine |
| Little things I should have | said and done | I just never took the | time | But You were always on my | mind | You were always on my | mind |
| Tell | me | tell me that your sweet love hasn't | died | Give | me | give me one more chance | To keep you satisfied |
| Isatisfied | | | | | | | |
| Little things I should have | said and done | I just never took the | time | But You were always on my | mind | You were | always on my mind |
| But You were always on my | mind | You were | always on my mind |
[LyricsEnd]
[SongEnd]


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