Tabline

Your Guitar Pro file will not open: what is actually wrong

By machado001 · 18 September 2026

Short answer. Check what the file actually is before blaming the app. Most failures are a text tab or an archive wearing a .gp5 name, a format from a different program (.tg, .ptb), or a download that stopped early — its size is suspiciously small.

Open your tab file with Tabline

1. It is a text tab with the wrong name

ASCII tabs — the dashes-and-numbers kind you copy out of a forum — are plain text. Saved as song.gp5 they look like a score file and are not one: there is no timing, no tuning and no instrument in them, only characters. Nothing can play them, because there is nothing to play. Open the file in a text editor; if you can read it, that is what you have.

2. It is an archive of something else

Newer Guitar Pro files are zip archives, which cuts both ways: people rename zips of PDFs or images to .gp and the disguise is convincing until a reader looks inside and finds no score.

3. It is another program's format

.tg is TuxGuitar. .ptb is Power Tab. .sib is Sibelius, .mscz is MuseScore. None of them are Guitar Pro files, and a Guitar Pro reader will not open them. The fix is to open the file in the program that wrote it and export MusicXML, which almost everything can read — see opening MusicXML on Android.

4. The download stopped early

A truncated file has a plausible name and an implausible size. A real score is usually tens of kilobytes; a few hundred bytes means the transfer failed. Download it again, preferably not over a flaky connection.

How to tell quickly

SymptomMost likely
Opens in a text editor and you can read itASCII tab, not a score file
A few hundred bytesTruncated download
Renaming to .zip reveals PDFs or imagesA disguised archive
Extension is .tg, .ptb, .mscz, .sibAnother program's format — export MusicXML

When Tabline cannot read a file it says which of these it looks like, rather than showing a blank page. If you report it, the report sends the format and the error — never the file itself.

Find out in one tap

Tabline names the format it found and the reason it could not read it, rather than failing silently.

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